MS Book and Mineral Company Colorado II Catalog - State and Miscellaneous Publications Colorado School of Mines Publications Colorado Scientific Society Publications Geology and Mining History of the United States Place an Order

MS Book and Mineral Company Geology and Mining History of Colorado I - Federal Publications

Recent additions noted in this color Colorado USGS Annual Reports 16th Annual Report, Part II - Papers on an Economic Nature (complete volume) / 598 pages, cl, 42 plates (2 plates in pocket), 65 figs., slight wear on cover, $ 225; contents of volume include: GEOLOGY AND MINING INDUSTRIES OF THE CRIPPLE CREEK DISTRICT, COLORADO; GEOLOGICAL RECONNAISSANCE ACROSS IDAHO; ECONOMIC GEOLOGY OF THE MERCUR MINING DISTRICT, UTAH 16th Annual Report, Part II - PAPERS ON AN ECONOMIC NATURE / 1895, 598 pages, cl, 42 plates (2 plates in pocket), 65 figs., bound in an Interior Department Binding, instead of the usual USGS Annual Report Binding, same contents, $ 175; contents of volume include: GEOLOGY AND MINING INDUSTRIES OF THE CRIPPLE CREEK DISTRICT, COLORADO; GEOLOGICAL RECONNAISSANCE ACROSS IDAHO; ECONOMIC GEOLOGY OF THE MERCUR MINING DISTRICT, UTAH 17th Annual Report, Part II / 1896, cl, slight wrinkle on spine, ovg, $ 200; contents of the volume include: GOLD QUARTZ VEINS OF NEVADA CITY AND GRASS VALLEY DISTRICTS, CALIFORNIA, GEOLOGY OF SILVER CLIFF AND THE ROSITA HILLS, COLORADO, THE MINES OF CUSTER COUNTY, COLORADO, Geologic section along the New and Janawha River in West Virginia, The Tennessee Phosphates, The underground water of the Arkansas Valley in eastern Colorado, Preliminary report on the artesian waters of a portion of the Dakotas, The water resources of Illinois 18th Annual Report, Part III / 1897, cl, 861 pages, 118 plates (6 in pocket), 74 figs., $ 225; contents include: Reconnaissance of the Gold Fields of Southern Alaska, with some notes on general geology; Geology of the Yukon Gold District, Alaska; Some Coal Fields of Puget Sound; Geology and Mineral Resources of the Judith Mountains of Montana; The Mining Districts of the Idaho Basin and the Boise Range, Idaho, with a report on the fossil plants of the Payette Formation; Preliminary Report on the Mining Industries of the Telluride Quadrangle, Colorado Colorado USGS Annual Report Sections 16th Annual Report, Part II; 1895 part a. INTRODUCTION TO ENTIRE VOLUME AND THE GEOLOGY AND MINING INDUSTRIES OF THE CRIPPLE CREEK DISTRICT, COLORADO, afb, includes the loose plate of the Cripple Creek District, pages 1 - 209, $ 100 18th Annual Report, Part III; 1897, sections bound as indicated part f: pages 745 - 848, in binder, one plate, PRELIMINARY REPORT ON THE MINING INDUSTRIES OF THE TELLURIDE QUADRANGLE, COLORADO, $ 75 21st Annual Report, Part II; 1900, sections bound as indicated part a: GEOLOGY OF THE RICO MOUNTAINS, pages 7 - 165, cl[2], newly rebound, plate in pocket, $ 85 22nd Annual Report, Part II; 1901, sections bound as indicated part c. THE ORE DEPOSITS OF THE RICO MOUNTAINS, COLORADO, pb, pages 229 - 397, 16 plates (1 in pocket), 33 figs., $ 100 USGS Survey of the Territorie Hayden, F. V. / 7th ANNUAL REPORT OF THE US GEOLOGICAL AND GEOGRAPHICAL SURVEY OF THE TERRITORIES EMBRACING COLORADO BEING A REPORT OF PROGRESS OF THE EXPLORATION FOR THE YEAR 1873, Washington, 1874, original cl, 718 pages, slight water staining on index and several plates only, ovg, back end-plate replaced, plates in pocket, $ 795 Hayden, F. V. / 9th ANNUAL REPORT OF THE US GEOLOGICAL AND GEOGRAPHICAL SURVEY OF THE TERRITORIES EMBRACING COLORADO AND PARTS OF ADJACENT TERRITORIES, Washington, 1877, original cl, 827 pages, wear and chipping on top and bottom of spine, a good copy with clean text, fold-out maps, plates and figures, lettering on spine faded, $ 350 Colorado USGS Professional Papers PP 54 / Lindgren, W. and Ransome, F. L. / GEOLOGY AND ORE DEPOSITS OF THE CRIPPLE CREEK DISTRICT, COLORADO, 1906, afb, 516 pages, 29 plates (3 in pocket), 64 figs., $ 475 PP 63 / Ball, S. H. / ECONOMIC GEOLOGY OF THE GEORGETOWN QUADRANGLE together with the Empire District, Colorado, 1908, cl[2], 422 pages, 87 plates (4 plates in pocket), 155 figs., $ 425 PP 63 / Ball, S. H. / ECONOMIC GEOLOGY OF THE GEORGETOWN QUADRANGLE together with the Empire District, Colorado, 1908, afb, 422 pages, 87 plates (4 plates in pocket), 155 figs., $ 375 PP 63 / Ball, S. H. / ECONOMIC GEOLOGY OF THE GEORGETOWN QUADRANGLE together with the Empire District, Colorado, 1908, afb, 422 pages, 87 plates (the 4 pocket were missing; they have been partially replaced with six jpeg images on a CD showing the important sections of these plates), 155 figs., $ 195 PP 67 / Howe, E. / LANDSLIDES IN THE SAN JUAN MOUNTAINS, COLORADO INCLUDING A CONSIDERATION OF THEIR CAUSES AND THEIR CLASSIFICATION, 1909, afb, 58 pages, 20 plates, 4 figs., $ 95 PP 75 / Ransome, F. L. / GEOLOGY AND ORE DEPOSITS OF THE BRECKENRIDGE DISTRICT, COLORADO, 1911, afb, 187 pages, 33 plates (2 in pocket), 29 figs., $ 325 PP 90 A / Bastin, E. S. / GEOLOGY OF THE PITCHBLENDE ORES OF COLORADO, 1914, pb, 5 pages, 2 plates, $ 9 PP 94 / Bastin, E. S. and Hill, J. M. / GILPIN COUNTY AND ADJACENT PARTS OF CLEAR CREEK AND BOULDER COUNTIES, COLORADO, 1917, cl[3], 379 pages, 23 plates, 79 figs., $ 395 PP 94 / Bastin, E. S. and Hill, J. M. / GILPIN COUNTY AND ADJACENT PARTS OF CLEAR CREEK AND BOULDER COUNTIES, COLORADO, 1917, afb, 379 pages, 23 plates, 79 figs., $ 200 PP 94 / Bastin, E. S. and Hill, J. M. / GILPIN COUNTY AND ADJACENT PARTS OF CLEAR CREEK AND BOULDER COUNTIES, COLORADO, 1917, bound in two afb, 379 pages, 23 plates, 79 figs., $ 150, on sale for a limited time, $ 125 PP 101 / Lee, W. T. and Knowlton, F. H. / GEOLOGY AND PALEONTOLOGY OF THE RATON MESA AND OTHER REGIONS IN COLORADO AND NEW MEXICO, 1917, afb, 449 pages, 103 plates (2 plates in pocket), 16 figs., $ 125 PP 101 / Lee, W. T. and Knowlton, F. H. / GEOLOGY AND PALEONTOLOGY OF THE RATON MESA AND OTHER REGIONS IN COLORADO AND NEW MEXICO, 1917, afb, 449 pages, 103 plates (2 plates in pocket), 16 figs., book contains more library stamps than usual but is complete and in good condition, $ 95 PP 130 / Knowlton, F. H. / THE LARAMIE FLORA OF THE DENVER BASIN, with a Review of the Laramie Problem, 1922, afb, 175 pages, 28 plates, 1 figure, $ 85 PP 134 / Reeside, J. B., Jr. / UPPER CRETACEOUS AND TERTIARY FORMATIONS OF THE WESTERN PART OF THE SAN JUAN BASIN COLORADO AND NEW MEXICO, 1924, pb, 70 pages, 4 plates, 5 figs., also includes Knowlton, F. H., FLORA OF THE ANIMAS FORMATION, 46 pages, 15 plates, $ 55 PP 138 / Henderson, C. W. / MINING IN COLORADO, 1926, afb, 263 pages, small chips on corners of several pages, ovg, 1 plate, 20 figs., $ 200 PP 148 / Emmons, S. F., Irving, J. D. and Loughlin, G. F. / GEOLOGY AND ORE DEPOSITS OF THE LEADVILLE MINING DISTRICT, COLORADO, 1927, cl[2], 368 p., 70 pl. (16 plates in map pocket), 111 figs., 3 inserts, - 3 -, $ 475 PP 148 / Emmons, S. F., Irving, J. D. and Loughlin, G. F. / GEOLOGY AND ORE DEPOSITS OF THE LEADVILLE MINING DISTRICT, COLORADO, 1927, pb, 368 p., 70 pl. (16 plates in map pocket), 111 figs., 3 inserts, - 3 -, $ 450  PP 149 / Lee, W. T. / CORRELATION OF GEOLOGIC FORMATIONS BETWEEN EAST-CENTRAL COLORADO, CENTRAL WYOMING AND SOUTHERN MONTANA, 1927, pb, 35 plates, 5 figs., $ 38 PP 155 / Knowlton, F. H. / THE FLORA OF THE DENVER AND ASSOCIATED FORMATIONS OF COLORADO, 1930, afb, 142 pages, 59 plates, $ 75 PP 155 / Knowlton, F. H. / THE FLORA OF THE DENVER AND ASSOCIATED FORMATIONS OF COLORADO, 1930, afb, 142 pages, 59 plates, slight water damage with some page wrinkling, ovg, $ 35 PP 166 / Atwood, W. W. and Mather, K. F. / PHYSIOGRAPHY AND QUATERNARY GEOLOGY OF THE SAN JUAN MOUNTAINS, COLORADO, 1932, afb, 176 pages, 34 plates, 25 figs., $ 80 PP 169 / Burbank, W. S. / GEOLOGY AND ORE DEPOSITS OF THE BONANZA MINING DISTRICT, COLORADO, 1932, cl[2], 166 pages, 35 plates (4 in pocket), 47 figs., slight staining on extreme bottom right corner of several pages, ovg, $ 275 PP 169 / Burbank, W. S. / GEOLOGY AND ORE DEPOSITS OF THE BONANZA MINING DISTRICT, COLORADO, 1932, afb, 166 pages, 35 plates (4 in pocket), 47 figs., $ 250 PP 176 / Lovering, T. S. / GEOLOGY AND ORE DEPOSITS OF THE BRECKENRIDGE MINING DISTRICT, COLORADO, 1934, afb, 64 pages, 15 plates (5 in pocket), 28 figs., - 3 -, $ 225 PP 178 / Lovering, T. S. / GEOLOGY AND ORE DEPOSITS OF THE MONTEZUMA QUADRANGLE, COLORADO, 1935, afb, 119 pages, 40 plates (4 plates in pocket), 30 figs., 1 insert, $ 245 PP 178 / Lovering, T. S. / GEOLOGY AND ORE DEPOSITS OF THE MONTEZUMA QUADRANGLE, COLORADO, 1935, cl, 119 pages, 40 plates (4 plates in pocket), 30 figs., 1 insert, $ 265 PP 186 K / Dane, C. H., et.al. / THE STRATIGRAPHY OF THE UPPER CRETACEOUS ROCKS NORTH OF THE ARKANSAS RIVER IN EASTERN COLORADO, 1937, pb, 27 pages, 2 plates, 3 figs., $ 4 PP 219 / Eckel, E. B., et. al. / GEOLOGY AND ORE DEPOSITS OF THE LA PLATA DISTRICT, COLORADO, 1949, afb, 179 pages, 29 plates, 50 figures, $ 295 PP 221 D / Brown, R. W. / CRETACEOUS PLANTS FROM SOUTHWESTERN COLORADO, 1950, pb, pages, 45 - 66, 4 plates, gentle wrinkling of pages, ovg, $ 15 PP 223 / Lovering, T. S. and Goddard, E. N. / GEOLOGY AND ORE DEPOSITS OF THE FRONT RANGE, COLORADO, 1950, pb, 319 pages, 30 plates (2 in volume, 28 in pocket), 90 figs., $ 145 PP 223 / Lovering, T. S. and Goddard, E. N. / GEOLOGY AND ORE DEPOSITS OF THE FRONT RANGE, COLORADO, 1950, pb, 319 pages, 30 plates (2 in volume, 28 in pocket), 90 figs., $ 175 PP 223 / Lovering, T. S. and Goddard, E. N. / GEOLOGY AND ORE DEPOSITS OF THE FRONT RANGE, COLORADO, 1950, afb, 319 pages, 30 plates (2 in volume, 28 in pocket), 90 figs., with inscription on cover: “To James Underhill with compliments of Tom S. Lovering,” $ 200 PP 223 / Lovering, T. S. and Goddard, E. N. / GEOLOGY AND ORE DEPOSITS OF THE FRONT RANGE, COLORADO, 1950, cl, 319 pages, 30 plates (2 in volume, 28 in pocket), 90 figs., $ 250 PP 235 / Behre, C. H., Jr. / GEOLOGY AND ORE DEPOSITS OF THE WEST SLOPE OF THE MOSQUITO RANGE, 1953, pb, 176 pages, 20 plates (in pocket), 101 figs., $ 100 PP 235 / Behre, C. H., Jr. / GEOLOGY AND ORE DEPOSITS OF THE WEST SLOPE OF THE MOSQUITO RANGE, 1953, afb, 176 pages, 20 plates (in separate packet), 101 figs., $ 125 PP 235 / Behre, C. H., Jr. / GEOLOGY AND ORE DEPOSITS OF THE WEST SLOPE OF THE MOSQUITO RANGE, 1953, cl, 176 pages, 20 plates (in pocket), 101 figs., $ 225 PP 245 / Lovering, T. S. and Tweto, O. / GEOLOGY AND ORE DEPOSITS OF THE BOULDER COUNTY TUNGSTEN DISTRICT, COLORADO, 1953, pb, 199 pages, 27 plates (in pocket), 135 figs., 12 tables, $ 60 PP 245 / Lovering, T. S. and Tweto, O. / GEOLOGY AND ORE DEPOSITS OF THE BOULDER COUNTY TUNGSTEN DISTRICT, COLORADO, 1953, afb, 199 pages, 27 plates (in pocket), 135 figs., 12 tables, $ 75 PP 254 B / Yen, T. C. / NONMARINE MOLLUSKS OF LATE CRETACEOUS AGE FROM WYOMING, UTAH, AND COLORADO, 1954, pb, 9 pages, 3 plates, $ 18 PP 258 / Larsen, E. S., Jr. and Cross, W. / GEOLOGY AND PETROLOGY OF THE SAN JUAN REGION, SOUTHWESTERN COLORADO, 1956, afb, 303 pages, 4 plates (in pocket), 58 figs., 39 tables, (1 in pocket), $ 175 PP 265 / Staatz, M. H. and Trites, A. F. / GEOLOGY OF THE QUARTZ CREEK PEGMATITE DISTRICT, GUNNISON COUNTY, COLORADO, 1955, pb, 111 pages, 8 plates, 36 figs., 20 tables, $ 75 PP 265 / Staatz, M. H. and Trites, A. F. / GEOLOGY OF THE QUARTZ CREEK PEGMATITE DISTRICT, GUNNISON COUNTY, COLORADO, 1955, afb, 111 pages, 8 plates, 36 figs., 20 tables, $ 85 PP 274 B / Waage, K. M. / DAKOTA GROUP IN NORTHERN FRONT RANGE FOOTHILLS, COLORADO, 1955, pb, pages 15 - 51, 16 figs., $ 16 PP 274 H / Brown, R. W. / PALMLIKE PLANTS FROM THE DOLORES FORMATION (TRIASSIC), SOUTHWESTERN COLORADO, 1956, pb, 6 pages, 2 plates, 1 figure, $ 6 PP 274 M / Steven, T. A. / METAMORPHISM AND THE ORIGIN OF GRANITIC ROCKS, NORTHGATE DISTRICT, COLORADO, 1957, cl, pages 335 - 377, 8 plates, 1 table, $ 26 PP 274 M / Steven, T. A. / METAMORPHISM AND THE ORIGIN OF GRANITIC ROCKS, NORTHGATE DISTRICT, COLORADO, 1957, pb, pages 335 - 377, 8 plates, 1 table, $ 20 PP 289 / Dings, M. G. and Robinson, C. S. / GEOLOGY AND ORE DEPOSITS OF THE GARFIELD QUADRANGLE, COLORADO, 1957, afb, 110 pages, 14 plates (plate 1 is missing), 8 figs., $ 75 PP 289 / Dings, M. G. and Robinson, C. S. / GEOLOGY AND ORE DEPOSITS OF THE GARFIELD QUADRANGLE, COLORADO, 1957, afb, 110 pages, 15 plates, 8 figs., $ 125 PP 316 / Joesting, H. R., et.al. / GEOPHYSICAL FIELD INVESTIGATIONS, 1956-63, 1958, cl, 153 pages, 24 plates (in pocket), $ 45 [Uravan, Lisbon Valley, Mojave Desert, Wasatch Front, La Sal Mountains, Cook Inlet, and Copper River Basin] PP 316 A / REGIONAL GEOPHYSICAL INVESTIGATIONS OF THE URAVAN AREA, COLORADO, 1958, pb, 17 pages, 3 plates, 5 figs, $ 18 PP 316 F / Case, J. E. / REGIONAL GEOPHYSICAL INVESTIGATIONS IN THE LA SAL MOUNTAINS AREA, UTAH AND COLORADO, 1963, pb, pages 91 - 116, 4 plates (in pocket), 10 figs., 2 tables, $ 24 PP 319 / Harrison, J. E. and Wells, J. D. / GEOLOGY AND ORE DEPOSITS OF THE CHICAGO CREEK AREA, CLEAR CREEK COUNTY, COLORADO, 1959, pb, 92 pages, 13 plates, 48 figs., 15 tables, $ 75 PP 332 / Fisher, D. J., Erdmann, C. E., and J. B. Reeside, Jr. / CRETACEOUS AND TERTIARY FORMATIONS OF THE BOOK CLIFFS, CARBON, EMERY, AND GRAND COUNTIES, UTAH AND GARFIELD AND MESA COUNTIES, COLORADO, 1960, pb, 80 pages, 9 plates (in pocket), 1 figure, 20 tables, $ 15 PP 343 / Steven, T. A. and Ratte, J. C. / GEOLOGY AND ORE DEPOSITS OF THE SUMMITVILLE DISTRICT, SAN JUAN MOUNTAINS, COLORADO, 1960, afb, 70 pages, 9 plates (5 in pocket), 15 figs., 7 tables, - 3 -, $ 195 PP 359 / Sims, P. K.,, Drake, A. A., and Tooker, E. W. / ECONOMIC GEOLOGY OF THE CENTRAL CITY DISTRICT, GILPIN COUNTY, COLORADO, 1963, afb, 231 pages, 12 plates (in separate slipcase), 96 figs., 131 tables, $ 295 PP 371 / Sims, P. K., et. al. / GEOLOGY OF URANIUM AND ASSOCIATED ORE DEPOSITS, CENTRAL PART OF THE FRONT RANGE MINERAL BELT, COLORADO, 1963, pb, 119 pages, 8 plates (in pocket), 63 figs., $ 55 PP 374 B / Harrison, J. E. and Moench, R. H. / JOINTS IN PRECAMBRIAN ROCKS, CENTRAL CITY - IDAHO SPRINGS AREA, COLORADO, 1961, pb, 14 pages, 10 figs., 1 table, $ 10 PP 374 I / Sears, J. D. / YAMPA CANYON IN THE UINTA MOUNTAINS, COLORADO, 1962, pb, 34 pages, 1 plate (in pocket), 9 figs., $ 9 PP 378 A / Varnes, D. J. / GEOLOGY AND ORE DEPOSITS OF THE SOUTH SILVERTON MINING AREA, SAN JUAN COUNTY, COLORADO, 1963, pb, 56 pages, 7 plates, 27 figs., 7 tables, $ 100 PP 378 A / Varnes, D. J. / GEOLOGY AND ORE DEPOSITS OF THE SOUTH SILVERTON MINING AREA, SAN JUAN COUNTY, COLORADO, 1963, pb, 56 pages, 7 plates, 27 figs., 7 tables, $ 95 PP 378 B / Varnes, D. J. / ANALYSIS OF PLASTIC DEFORMATION ACCORDING TO VON MISES’ THEORY WITH APPLICATION TO THE SOUTH SILVERTON AREA, SAN JUAN COUNTY, COLORADO, 1962, pb, 49 pages, 2 plates (in pocket), 23 figs., $ 10 PP 421 A / Scott, G. R. / QUATERNARY GEOLOGY AND GEOMORPHIC HISTORY OF THE KASSLER QUADRANGLE, COLORADO, 1963, pb, 59 pages, 1 plate (in pocket), 27 figs., 6 tables, $ 10 PP 421 B / Scott, G. R. / BEDROCK GEOLOGY OF THE KASSLER QUADRANGLE, COLORADO, 1963, pb, 59 pages, 2 plates (in pocket), 8 figs., 3 tables, $ 10 PP 439 / Tooker, E. W. / ALTERED WALLROCKS IN THE CENTRAL PART OF THE FRONT RANGE MINERAL BELT, GILPIN AND CLEAR CREEK COUNTIES, COLORADO, 1963, pb, 102 pages, 1 plate (in pocket), 74 figs., 34 tables, $ 26 PP 441 / Iorns, W. V., et.al. / WATER RESOURCES OF THE UPPER COLORADO RIVER BASIN – TECHNICAL REPORT, 1965, afb, 370 pages, 9 plates (in pocket), 16 figs., 15 tables, $ 48 PP 451 / Lohman, S. W. / GEOLOGY AND ARTESIAN WATER SUPPLY, GRAND JUNCTION AREA, COLORADO, 1965, pb, 149 pages, 2 plates ( in pocket), 47 figs., 9 tables, $ 40 PP 454 L / Scott, G. R. and Cobban, W. A. / STRATIGRPAHY OF THE NIOBRARA FORMATION AT PUEBLO, COLORADO, 1964, pb, 30 pages, 11 plates, 9 figs., 3 tables, $ 7 PP 454 O / Wells, J. D., et.al. / RELATIONSHIP OF PRECAMBRIAN QUARTZITE - SCHIST SEQUENCE ALONG COAL CREEK TO IDAHO SPRINGS FORMATION, FRONT RANGE, COLORADO, 1964, pb, 25 pages, 1 plate in pocket, 9 figs., 1 table, $ 7 PP 474 C / Sims, P. K. and Gable, D. J. / GEOLOGY OF PRECAMBRIAN ROCKS, CENTRAL CITY DISTRICT, COLORADO, 1964, pb, 52 pages, 3 plates (in pocket), 7 figs., 32 tables, $ 25 PP 481 / Ekren, E. B. and Houser, F. N. / GEOLOGY AND PETROLOGY OF THE UTE MOUNTAINS AREA, COLORADO, 1965, 74 pages, 1 plate (in pocket), 26 figs., 14 tables, pb, $ 40 PP 487 / Steven, T. A. and Ratte, J. C. / GEOLOGY AND STRUCTURAL CONTROL OF ORE DEPOSITION IN THE CREEDE DISTRICT, SAN JUAN MOUNTAINS, COLORADO, 1965, afb, 90 pages, 7 plates (in slipcase), 7 figs., 2 tables, $ 200 PP 487 / Pocket Plate one only. Geologic Map and Section of the Creede District, Colorado, $ 20 PP 487 / Pocket Plate two only. Tectonic Map of the Creede District, Colorado, $ 13 PP 487 / Pocket Plate three only. Geologic Maps of the Amethyst 5 and Commodore 3, Amethyst Vein Zone, Creede District, $ 15 PP 487 / Pocket Plate four only. Geologic Map of the Commodore 5 Level, Amethyst Vein Zone, Creede District, $ 16 PP 487 / Pocket Plate five only. Geologic Map of the Silver Horde and Mangusson Levels, Monon Hill Mine, Creede District, $ 7 PP 487 / Pocket Plate six only. Geologic Map...Holy Moses 2, Outlet Tunnel, Palo Alto Level...Holy Moses & Phoenix Mines, $ 12 PP 487 / Pocket Plate seven only. Map of Mine Workings on the Mexico, Solomon, Ethel, and Ridfe Mines, Creede District, $ 9 PP 503 C / Lewis, G. E. and Vaugh, P. P. / EARLY PERMIAN VERTEBRATES FROM THE CUTLER FORMATION OF THE PLACERVILLE AREA, COLORADO, 1965, pb, 50 pages, 14 figs., 1 table, $ 20 PP 508 / Carter, W. D. and Gualtieri, J. L. / GEOLOGY AND URANIUM-VANADIUM DEPOSITS OF THE SAL QUADRANGLE, SAN JUAN COUNTY, UTAH AND MONTROSE COUNTY, COLORADO, 1965, cl, 82 pages, 13 plates (in separate slip-case), 12 figs., 4 tables, $ 100 PP 520 / Sheridan, D. M., Maxwell, C. H., and Albea, A. L. / GEOLOGY AND URANIUM DEPOSITS OF THE RALSTON BUTTES DISTRICT, JEFFERSON COUNTY, COLORADO, with sections on paleozoic and younger sedimentary rocks by R. Van Horn, 1967, pb, 121 pages, 8 plates (in slipcase), 33 figs., 33 tables, $ 75 PP 524 H / Ratte, J. C. and Steven, T. A. / ASH FLOWS AND RELATED VOLCANIC ROCKS ASSOCIATED WITH THE CREEDE CALDERA, SAN JUAN MOUNTAINS, COLORADO, 1967, pb, 58 pages, 1 plate (in pocket), frontispiece photograph of the Creede Caldera from McKenzie Mountain to the north, 22 figs., 22 tables, $ 22 PP 535 / Burbank, W. S. and Luedke, R. G. / GEOLOGY AND ORE DEPOSITS OF THE EUREKA AND ADJOINING DISTRICTS, SAN JUAN MOUNTAINS, COLORADO, 1969, afb, 73 pages, 8 plates, 15 figures, 15 tables, $ 100 PP 551 / Varnes, J. D., et.al. / GENERAL AND ENGINEERING GEOLOGY OF THE UNITED STATES AIR FORCE ACADEMY SITE, COLORADO, 1967, afb, 93 pages, 8 plates (in pocket), 62 figs., 9 tables, $ 36 PP 554 E / Sims, P. K. and Gable, D. J. / PETROLOGY AND STRUCTURE OF PRECAMBRIAN ROCKS, CENTRAL CITY QUADRANGLE, COLORADO, 1967, pb, 56 pages, 1 plate (in pocket), 9 figs., 5 tables, $ 18 PP 556 / Cadigan, R. A. / PETROLOGY OF THE MORRISON FORMATION IN THE COLORADO PLATEAU REGION, 1967, pb, 113 pages, 1 plate (in pocket), 65 figs., 27 tables, $ 27 PP 576 A / STRATIGRAPHY OF SLICK ROCK DISTRICT AND VICINITY, SAN MIGUEL AND DOLORES COUNTIES, COLORADO, 1968, pb, 107 pages, 16 plates, 48 figs., 5 tables, $ 28 PP 576B / Shawe, D. R. / PETROGRAPHY OF SEDIMENTARY ROCKS IN THE SLICK ROCK DISTRICT, SAN MIGUEL AND DOLORES COUNTIES, COLORADO, 1968, pb, 34 pages, 46 figs., 12 tables, $ 10 PP 576C / Shawe, D. R. / STRUCTURE OF THE SLICK ROCK DISTRICT AND VICINITY, SAN MIGUEL AND DOLORES COUNTIES, COLORADO, 1970, 18 pages, 7 figs., 1 table, $ 8 PP 576 D / Shawe, D. R. / SEDIMENTARY ROCK ALTERATION IN THE SLICK ROCK DISTRICT, San Miguel and Dolores Co., Colorado, 1976, pb, 51 pages, 2 plates, 28 figs., 24 tables, $ 7 PP 576 E / Shawe, D. R. / GEOLOGIC HISTORY OF THE SLICK ROCK DISTRICT AND VICINITY, SAN MIGUEL AND DOLORES COUNTIES, COLORADO, 1976, pb, 19 pages, 2 figs., 1 table, $ 7 PP 586 / Izett, G. A. / GEOLOGY OF THE HOT SULPHUR SPRINGS QUADRANGLE, GRAND COUNTY, COLORADO, 1968, pb, 79 pages, 1 plate (in pocket), 25 figs., 10 tables, $ 11 PP 594 G / Johnson, R. B. / GEOLOGY OF THE IGNEOUS ROCKS OF THE SPANISH PEAKS REGION, COLORADO, 1968, pb, 1 plate (in pocket), 9 figs., 21 tables, $ 12 PP 594 I / Steven, T. A. / CRITICAL REVIEW OF THE SAN JUAN PENEPLAIN, SOUTHWESTERN COLORADO, 1968, pb, 19 pages, 1 plate (in pocket), $ 6 PP 608 A / Hawley, C. C. / GEOLOGY AND BERYLLIUM DEPOSITS OF THE LAKE GEORGE (OR BADGER FLATS) BERYLLIUM AREA, PARK AND JEFFERSON COUNTIES, COLORADO, 1969, pb, 44 pages, 4 plates (in pocket), 14 figs., 9 tables, $ 45 PP 608 B / Shawe, D. R. / GENERAL GEOLOGY AND PETROLOGY OF THE PRECAMBRIAN CRYSTALLINE ROCKS, PARK AND JEFFERSON COUNTIES, COLORADO, 1977, pb, 77pages, 1 plate (in pocket), 46 figs., 21 tables, $ 28 PP 616 / Braddock, W. A. / GEOLOGY OF THE EMPIRE QUADRANGLE; GRAND, GILPIN, AND CLEAR CREEK COUNTIES, COLORADO, 1969, afb, 56 pages, 28 figs., 3 plates (in pocket), 20 tables, $ 75 PP 617 / Yeend, W. E. / QUATERNARY GEOLOGY OF THE GRAND AND BATTLEMENT MESAS AREA, COLORADO, 1969, afb, 50 pages, 1 plate (in pocket), 35 figs., 6 tables, $ 20 PP 625 A / DISTRIBUTION OF GOLD AND OTHER METALS IN THE CRIPPLE CREEK DISTRICT, COLORADO, 1969, pb, 17 pages, 2 plates (in pocket), 2 tables, $ 25 PP 626 / Van Alstine, R. E. / GEOLOGY AND MINERAL DEPOSITS OF THE PONCHA SPRINGS NE QUADRANGLE, CHAFFEE COUNTY, COLORADO, 1969, pb, 52 pages, 6 plates (in pocket), 10 figs., 17 tables, $ 55 PP 626 / Van Alstine, R. E. / GEOLOGY AND MINERAL DEPOSITS OF THE PONCHA SPRINGS NE QUADRANGLE, CHAFFEE COUNTY, COLORADO, 1969, afb, 52 pages, 6 plates (in pocket), 10 figs., 17 tables, $ 65 PP 626 / Van Alstine, R. E. / GEOLOGY AND MINERAL DEPOSITS OF THE PONCHA SPRINGS NE QUADRANGLE, CHAFFEE COUNTY, COLORADO, 1969, afb, 52 pages, 6 plates (in pockets; plate 1 on cd), 10 figs., 17 tables, $ 75 PP 637 / Cater, F. W. / GEOLOGY OF THE SALT ANTICLINE REGION IN SOUTHWESTERN COLORADO, 1970, pb, 80 pages, 2 plates on 3 sheets in pocket, 19 figs., $ 11 PP 637 / plate 1 only (in two parts), Geologic Map and Sections of the Salt Anticline Region of Southwestern Colorado, $ 8 PP 644A / Barker, F. / PRECAMBRIAN GEOLOGY OF THE NEEDLE MOUNTAINS, SOUTHWESTERN COLORADO, 1969, pb, 33 pages, 14 figs., 2 tables, $ 10 PP 645 / Cobban, W. A. and Scott, G. R. / STRATIGRAPHY AND AMMONITE FAUNA OF THE GRANEOS SHALE AND GREENHORN LIMESTONE NEAR PUEBLO, COLORADO, 1972, pb, 108 pages, 41 plates, 52 figs., 5 tables, $ 45 PP 649 / Parker, R. L. and Sharp, W. N. / MAFIC-ULTRAMAFIC IGNEOUS ROCKS AND ASSOCIATED CARBONATITES OF THE GEM PARK COMPLEX, Custer and Fremont Counties, Colorado, 1970, pb, 24 pages, 2 plates (in pocket), 17 figs., $ 8 PP 652 / Bergendahl, M. H. and Koschmann, A. H. / ORE DEPOSITS OF THE KOKOMO-TENMILE DISTRICT, COLORADO, 1971, pb, 53 pages, 2 plates, 21 figs., 10 tables, $ 75 PP 673 A-G / Robinson, C. S., Lee, F. T., et.al. / GEOLOGICAL, GEOPHYSICAL, AND ENGINEERING INVESTIGATIONS OF THE LOVELAND BASIN LANDSLIDE, CLEAR CREEK COUNTY, COLORADO 1963 - 1965, 1972, pb, 43 pages, 24 figs., $ 9 PP 690 / Stewart. J. H., et.al. / STRATIGRAPHY AND ORIGIN OF THE CHINLE FORMATION AND RELATED UPPER TRIASSIC STRATA IN THE COLORADO PLATEAU REGION, 1972, pb, 336 pages, 5 plates (in pocket), 34 figs., 9 tables, $ 125 PP 723 / McKnight, E. T. / GEOLOGY AND ORE DEPOSITS OF THE RICO DISTRICT, COLORADO, 1974, pb, 100 pages, 3 plates, 2 figures, 6 tables, $ 85 PP 726 C / GRAVITY AND MAGNETIC FEATURES AS RELATED TO GEOLOGY IN THE LEADVILLE 30-MINUTE QUADRANGLE, COLORADO, 1972, pb, 31 pages, 2 plates in pocket, 8 figs., 2 tables, $ 10 PP 726 F / Kleinkopf, M. D., et.al. / GRAVITY, MAGNETIC, AND SEISMIC STUDIES OF THE SILVER CLIFF AND ROSITA HILLS VOLCANIC AREA, COLORADO, 1979, pb, 17 pages, 2 plates (in pocket), 7 figs., 1 table, $ 24 PP 762 / Osterwald, F. W., et.al. / INSTRUMENTATION STUDIES OF EARTH TREMORS RELATED TO GEOLOGY AND TO MINING AT THE SOMERSET COAL MINE, COLORADO, 1972, pb, 27 pages, 30 figs., $ 6 PP 829 / Van Alstine, R. E. / GEOLOGY AND MINERAL DEPOSITS OF THE PONCHA SPRINGS SE QUADRANGLE, CHAFFEE COUNTY, COLORADO, 1974, cl, 19 pages, 1 plate (in pocket), 9 figs., 2 tables, $ 22 PP 831 A / HISTORY OF GEOLOGIC INVESTIGATIONS, ENGINEERING DESIGN, AND CONSTRUCTION METHODS OF THE HAROLD D. ROBERTS TUNNEL, COLORADO, 1974, pb, 13 pages, 5 plates, 6 figs., $ 15 PP 831 B / Robinson, C. S., et.al. / GENERAL GEOLOGY OF THE HAROLD D. ROBERTS TUNNEL, COLORADO, 1974, pb, 48 pages, 1 plate (in pocket) 18 figs., 12 tables, $ 15 PP 831 B / Robinson, C. S., et.al. / GENERAL GEOLOGY OF THE HAROLD D. ROBERTS TUNNEL, COLORADO, 1974, afb, 48 pages, 1 plate (in pocket) 18 figs., 12 tables, $ 20 PP 831 C / Wahlstrom, E. E., et.al. / GEOLOGY OF THE WESTERN PART OF THE HAROLD D. ROBERTS TUNNEL, COLORADO (STATIONS 0+00 TO 690+00), 1981, pb, 58 pages, 11 plates (in slipcase), 46 figs., 5 tables, $ 35 PP 852 / Lipman, P. W. / EVOLUTION OF THE PLATORO CALDERA COMPLEX AND RELATED VOLCANIC ROCKS, SOUTHEASTERN SAN JUAN MOUNTAINS, COLORADO, 1975, pb, 128 pages, 67 figs., 12 tables, $ 60 PP 868 / Scott, G. R., et.al. / POST-PALEOCENE TERTIARY ROCKS AND QUATERNARY VOLCANIC ASH OF THE WET MOUNTAIN VALLEY, COLORADO, 1975, pb, 15 pages, 1 plate (in pocket), 1 figure, 1 table, $ 6 PP 872 / Van Horn, R. / GEOLOGY OF THE GOLDEN QUADRANGLE, COLORADO, 1976, pb, 116 pages, 14 tables, 1 plate (in pocket), 53 figs., $ 70 PP 955 / Sheridan, D. M., et.al. / MINERALOGY AND GEOLOGY OF THE WAGNERITE OCCURRENCE ON SANTA FE MOUNTAIN, FRONT RANGE, COLORADO, 1976, pb, 23 pages, 17 figs., 8 tables, $ 5 PP 956 / Tweto, O. and Lovering, T. S. / GEOLOGY OF THE MINTURN 15-MINUTE QUADRANGLE, EAGLE AND SUMMIT COUNTIES, COLORADO, 1977, afb, 96 pages, 1 plate (in pocket), 26 figs., 8 tables, $ 95 PP 958 / Steven, T. A. and Lipman, P. W. / CALDERAS OF THE SAN JUAN VOLCANIC FIELD, SOUTHWESTERN COLORADO, 1976, pb, 35 pages, 25 figs., 1 table, $ 38 PP 959 G / Marsh, S. P. and Sheridan, D. M. / RUTILE IN PRECAMBRIAN SILLIMANITE-QUARTZ GNEISS AND RELATED ROCKS, EAST-CENTRAL FRONT RANGE, COLORADO, 1976, pb, 17 pages, 8 figs., 4 tables, $ 5 PP 965 / Lee, F. T., et.al. / THE RELATION OF GEOLOGY TO STRESS CHANGES CAUSED BY UNDERGROUND EXCAVATION IN CRYSTALLINE ROCKS AT IDAHO SPRINGS, 1976, pb, 47 pages, 1 plate (in pocket), 44 figs., 13 tables, $ 12 PP 988 AB / Butler, A. P., Jr. and Fischer, R. P. / URANIUM IN PHOSPHATE ROCK <and> URANIUM AND VANADIUM RESOURCES IN THE MOAB 1 X 2 QUADRANGLE, UTAH AND COLORADO, 1978, pb, 28 pages, 6 figs., 8 tables, $ 25 PP 1017 / Lovering, T. S., Tweto, O., and Lovering, T. G. / ORE DEPOSITS OF THE GILMAN DISTRICT, EAGLE COUNTY, COLORADO, 1978, pb, 90 pages, 2 plates (in pocket) 50 figs., 12 tables, $ 40 PP 1017 / Lovering, T. S., Tweto, O., and Lovering, T. G. / ORE DEPOSITS OF THE GILMAN DISTRICT, EAGLE COUNTY, COLORADO, 1978, afb, 90 pages, 2 plates (in pocket) 50 figs., 12 tables, $ 45 PP 1019 / Hansen, W. R., et.al. / CLIMATOLOGY OF THE FRONT RANGE URBAN CORRIDOR AND VICINITY, COLORADO, 1978, pb, 59 pages, 16 figs., 2 tables, 22 maps, $ 10 PP 1041 / Snyder, G. L. / INTRUSIVE ROCKS NORTHEAST OF STEAMBOAT SPRINGS, PARK RANGE, COLORADO, 1978, pb, 42 pages, 20 figs., 7 tables (1 in pocket), $ 18 PP 1049 B / ABUNDANCE AND DISTRIBUTION OF THORIUM IN THE CARBONATITE STOCK AT IRON HILL, POWDERHORN DISTRICT, GUNNISON COUNTY, COLORADO, 1980, pb, 11 pages, 4 figs., 1 tables, $ 10 PP 1049 C / Olson, J. C. and Hedlund, D. C. / ALKALIC ROCKS AND RESOURCES OF THORIUM AND ASSOCIATED ELEMENTS IN THE POWDERHORN DISTRICT, GUNNISON COUNTY, COLORADO, 1981, pb, 34 pages, 25 figs., 8 tables, $ 20 PP 1049 F / Armbrustmacher, T. J. / GEOLOGY AND RESOURCES OF THORIUM AND ASSOCIATED ELEMENTS IN THE WET MOUNTAINS AREA, FREMONT AND CUSTER COUNTIES, COLORADO, 1988, pb, 34 pages, 1 plate (in pocket), 6 figs., 18 tables, $ 20 PP 1073 / Bryant, B. / GEOLOGY OF THE ASPEN 15-MINUTE QUADRANGLE, PITKIN AND GUNNISON COUNTIES, COLORADO, 1979, pb, 146 pages, 4 stratigraphic sections, 68 figs., 14 tables, $ 45 PP 1101 / Gable, D. J. / THE BOULDER CREEK BATHOLITH, FRONT RANGE, COLORADO, 1980, pb, 88 pages, 2 plates (in pocket), 37 figs., 26 tables, $ 55 PP 1134 E / GOEOCHEMICAL VARIABILITY OF SOILS AND BIOGEOCHEMICAL VARIABILITY OF PLANTS IN THE PICEANCE BASIN, COLORADO, 1986, pb, 46 pages, 8 pages, 12 tables, $ 18 PP 1196 / Robson, S. G. and Saulnier, G. J., Jr. / HYDROGEOCHEMISTRY AND SIMULATED SOLUTE TRANSPORT, PICEANCE BASIN, NORTHWESTERN COLORADO, 1981, pb, 65 pages, 45 figs., 4 tables, $ 18 PP 1230 / ENVIRONMENTAL GEOLOGY OF THE FRONT RANGE URBAN CORRIDOR AND VICINITY, COLORADO, 1982, pb, 99 pages, 11 tables, 33 figs., $ 25 PP 1243 / Madole, R. F. / POSSIBLE ORIGINS OF TILL-LIKE DEPOSITS NEAR THE SUMMIT OF THE FRONT RANGE IN NORTH-CENTRAL COLORADO, 1982, pb, 31 pages, 20 figs., 5 tables, $ 10 PP 1269 / Armbrustmacher, T. J. / ALKALINE ROCK COMPLEXES IN THE WET MOUNTAINS AREA, CUSTER AND FREMONT COUNTIES, COLORADO, 1984, pb, 33 pages, 34 figs., 10 tables, $ 12 PP 1321 A / Tweto, O. / ROCK UNITS OF THE PRECAMBRIAN BASEMENT IN COLORADO, 1987, pb, 54 pages, 1 plate (in pocket), 4 figs., 1 table, $ 15 PP 1358 / Honey, J. A. and Izett, G. A. / PALEONTOLOGY, TAPHONOMY, AND STRATIGRAPHY OF THE BROWNS PARK FORMATION (OLIGOCENE AND MIOCENE) NEAR MAYBELL, MOFFAT COUNTY, COLORADO, 1988, pb, 52 pages, 18 figs., 17 tables, $ 15 PP 1457 / Olson, J. C. / GEOLOGY AND URANIUM DEPOSITS OF THE COCHETOPA AND MARSHALL PASS DISTRICTS, SAGUACHE AND GUNNISON COUNTIES, COLORADO, 1988, pb, 44 pages, 20 figs., 3 tables, $ 10 PP 1505 B,C / Aubrey, W. M., et.al. / GEOLOGIC FRAMEWORK AND STRATIGRAPHY OF CRETACEOUS AND TERTIARY ROCKS OF THE SOUTHERN UTE INDIAN RESERVATION, SOUTHWESTERN COLORADO, 1991, pb, 36 pages, 3 plates (in pocket), 16 figs., 1 table, $ 25 PP 1506 A, B, C, D, E, and F / Roehler, H. W., et. al. / INTRODUCTION TO GREATER GREEN RIVER BASIN GEOLOGY, PHYSIOLOGY, AND HISTORY OF INVESTIGATIONS, STRATIGRAPHIC NOMENCLATURE, CORRELATION OF REFERENCE SECTIONS, 1992, pb, sold only as a complete set, $ 75 PP 1610 / Bankey, V., et.al. / MINERAL RESOURCE POTENTIAL AND GEOLOGY OF THE ROUTT NATIONAL FOREST AND THE MIDDLE PARK RANGER DISTRICT OF THE ARAPAHOE NATIONAL FOREST, COLORADO, 2000, pb, 117 pages, 1 plate (in pocket), 41 figs., 11 tables, $ 25 Colorado USGS Bulletins B 254 / Lindgren, W. and Ransome, F. L. / REPORT OF PROGRESS IN THE GEOLOGICAL RESURVEY OF THE CRIPPLE CREEK DISTRICT, COLORADO, 1904, afb, 36 pages, $ 40 B 265 / Fenneman, N. M. / GEOLOGY OF THE BOULDER DISTRICT, COLORADO, 1905, afb, 101 pages, 5 plates, 11 figs., $ 45 B 265 / Fenneman, N. M. / GEOLOGY OF THE BOULDER DISTRICT, COLORADO, 1905, cl, 101 pages, 5 plates, 11 figs., some page wrinkling, $ 40 B 265 / Plate 1 only. Topographic Map of the Vicinity of Boulder, Colorado, $ 6 B 265 / Plate 2 only. Geologic Map of the Vicinity of Boulder, Colorado, $ 10 B 297 / Fenneman, N. M. and Gale, H. S. / THE YAMPA COAL FIELD, ROUTT COUNTY, COLORADO, 1906, afb, 96 pages, 9 plates, 2 figs., $ 25 B 315 / Emmons, S. F. and Eckel, E. C. / CONTRIBUTIONS TO ECONOMIC GEOLOGY 1906, 1907, pb, 505 pages, includes: Lake Fork Extension-Silverton Mining Area, Colorado; Granite-Bimetallic & Cable Mines, Philipsburg Quad., Montana; Gold-bearing river sands of NE Washington, Gold developments in Central Uinta County; Copper deposits of the Hartville Uplift, Carnotite in Rio Blanco County; Nickel deposits of Nickel Mountain; 4 plates, 20 figs., tape on spine, ovg, $ 75 B 350 / Gale, H. S. / GEOLOGY OF THE RANGELY OIL DISTRICT, RIO BLANCO COUNTY, COLORADO, with a section on the water supply, 1908, afb, 61 pages, 4 plates, 1 figure, $ 16 B 371 / Richardson, G. B. / RECONNAISSANCE OF THE BOOK CLIFFS COAL FIELD, 1909, afb, 54 pages, 10 plates, 1 figure, $ 30 B 380 / Hayes, C. W. And Lindgren, W. / CONTRIBUTIONS TO ECONOMIC GEOLOGY 1908, Part I – Metals and Nonmetals, except fuels, 1909, pb, 4065 pages, includes: Notes on the economic geology of southeastern Gunnison County (CO); The Hornsilver District (NV); Round Mountain, Nevada; Mineral Resources of the Grants Pass Quadrangle and bordering districts (OR); Notes on the Bohemia Mining District (OR); Faulting and vein Structure in the Cripple Creek District (CO); the Yerington Copper District (NV); the Tres Hermanas Mining District (NM); $ 75 B 415 / Gale, H. S. / COAL FIELDS OF NORTHWESTERN COLORADO AND NORTHEASTERN UTAH, 1910, cl, 265 pages, 22 plates, 8 figs., $ 20 B 478 / Irving, J. D. and Bancroft, H. / GEOLOGY AND ORE DEPOSITS NEAR LAKE CITY, COLORADO, 1911, pb, 128 pages, 8 plates, 33 figs., $ 1452 B 510 / Lee, W. T. / COAL FIELDS OF GRAND MESA AND THE WEST ELK MOUNTAINS, COLORADO, 1912, afb, 237 pages, 13 plates, 37 figs., $ 20 B 531 C / Woodruff, E. G. / GEOLOGY AND PETROLEUM RESOURCES OF THE DE BEQUE OIL FIELD, COLORADO, 1913, pb, pages 3 - 17, 1 plate, 1 figure, $ 4 B 580 x / Butler, B. S. / UNAWEEP COPPER DISTRICT, COLORADO, 1913, pages 19 - 23, also some Cerussite Deposits, Custer County, Colorado and Grand Gulch Mining Region, Arizona, $ 8 B 583 / Hess, F. L. and Schaller, W. T. / COLORADO FERBERITE AND THE WOLFRAMITE SERIES, 1914, afb, 75 pages, 14 plates, 35 figs., $ 28 B 596 / Beekly, A. L. / GEOLOGY AND COAL RESOURCES OF NORTH PARK, COLORADO, 1915, afb, 121 pages, 12 plates, 1 figure, $ 25 B 620 I / Butler, B. S. and Loughlin, G. F. / A RECONNAISSANCE OF THE COTTONWOOD-AMERICAN FORK MINING REGION, UTAH, 1915, afb, light water staining to tops of some pages, ovg, pages 165 - 226, 1 plate, $ 15 B 620 M / Bastin, E. S. and Hill, J. M. / PRELIMINARY REPORT ON THE ECONOMIC GEOLOGY OF GILPIN COUNTY, COLORADO, 1916, pb, pages 295 - 323, 3 plates, 1 figure, $ 14 B 641 F / Winchester, D. E. / OIL SHALE IN NORTHWESTERN COLORADO AND ADJACENT AREAS, 1916, afb, pages 139 - 198, 9 plates (3 in pocket), 2 figs., $ 40 B 681 / Loughlin, G. F. / THE OXIDIZED ZINC ORES OF LEADVILLE, COLORADO, 1918, pb, 89 pages, 8 plates, 7 figs., $ 45 B 685 / Atwood, W. W. / RELATION OF LANDSLIDES AND GLACIAL DEPOSITS TO RESERVOIR SITES IN THE SAN JUAN MOUNTAINS, COLORADO, 1918, pb, 38 pages, 8 plates, 17 figs., $ 18 B 691 K / Collier, A. J. / COAL SOUTH OF MANCOS, MONTEZUMA COUNTY, COLORADO, 1919, pb, pages 293 - 310, 6 plates, 2 figs., $ 12 B 715 D / Jones, E. L., Jr. / SOME DEPOSITS OF MANGANESE ORE IN COLORADO, 1920, pb, pages 61-72, $ 4 B 718 / Emmons, W. H. and Larsen, E. S. / GEOLOGY AND ORE DEPOSITS OF THE CREEDE DISTRICT, COLORADO, 1923, afb, 198 pages, 12 plates, 32 figs., 1 insert, $ 145 B 730 A / Lee, W. T. / PENEPLAINS OF THE FRONT RANGE AND ROCKY MOUNTAIN NATIONAL PARK, COLORADO, 1922, pb, 17 pages, 8 plates, 3 figs., $ 5 B 735 D / Bastin, E. S. / SILVER ENRICHMENT IN THE SAN JUAN MOUNTAINS, COLORADO, 1922, pages 65 - 129, 19 figs., $ 10 B 748 / Campbell, M. R. / THE TWENTYMILE PARK DISTRICT OF THE YAMPA COAL FIELD, Routt County, Colorado, 1923, afb, 82 pages, 13 plates, (1 in pocket), 11 figs., $ 25 B 748 / Campbell, M. R. / THE TWENTYMILE PARK DISTRICT OF THE YAMPA COAL FIELD, Routt County, Colorado, 1923, afb, 82 pages, 13 plates, (pocket plate missing), 11 figs., $ 6 B 751 A / Lee, W. T. / CONTINUITY OF SOME OIL-BEARING SANDS OF COLORADO AND WYOMING, 1923, pb, 21 pages, 4 plates, 3 figs., $ 8 B 751 G / Sears, J. D. / GEOLOGY AND OIL AND GAS PROSPECTS OF PART OF MOFFAT COUNTY, COLORADO, AND SOUTHERN SWEETWATER COUNTY, WYOMING, 1924, pb, 319 pages, 3 plates (1 in plate), 3 figs., $ 5 B 757 / Hancock, E. T. / GEOLOGY AND COAL RESOURCES OF THE ANVIL AND MONUMENT BUTTE QUADRANGLES, MOFFAT COUNTY, COLORADO, 1925, cl, 134 pages, 19 plates (2 in pocket), 6 figs., $ 30 B 777 / Hunter, J. F. / PRE-CAMBRIAN ROCKS OF GUNNISON RIVER, COLORADO, 1925, pb, 94 pages, 15 plates (1 in pocket), 5 figs., $ 40 B 779 / Loughlin, G. F. / GUIDES TO ORE IN THE LEADVILLE DISTRICT, COLORADO, 1926, afb, 37 pages, 7 plates (1 plate in pocket), 4 figs., $ 100 B 779 / Loughlin, G. F. / GUIDES TO ORE IN THE LEADVILLE DISTRICT, COLORADO, 1926, afb, 37 pages, 7 plates (but the pocket plate is missing), 4 figs., $ 50 B 785 A / Knopf, A. / RECENT DEVELOPMENTS IN THE ASPEN DISTRICT, COLORADO, 1926, pb, 28 pages, 1 plate, 6 figs., $ 10 B 796 B / Mather, K. F., et.al. / GEOLOGY AND OIL AND GAS PROSPECTS OF NORTHEASTERN COLORADO, 1928, pb, 124 pages, 5 plates (1 in pocket), 5 figs., $ 15 B 812 C / Hancock, E. T. and Eby, J. B. / GEOLOGY AND COAL RESOURCES OF THE MEEKER QUADRANGLE, MOFFAT AND RIO BLANCO COUNTIES, COLORADO, 1930, pb, pages 191 - 242, 12 plates (1 in pocket), 2 figs., $ 8 B 843 / Cross, W. and Larsen, E. S. / A BRIEF REVIEW OF THE GEOLOGY OF THE SAN JUAN REGION OF SOUTHWESTERN COLORADO, 1935, afb, 138 pages, 16 plates (2 in pocket), 2 figs., $ 30 B 846 C / Butler, B. S. and Vanderwilt, J. W. / THE CLIMAX MOLYBDENUM DEPOSIT, COLORADO, 1933, pb, pages 195 - 237, 16 plates (2 in pocket), 5 Figs., $ 28 B 906 E / Burbank, W. S. / STRUCTURAL CONTROL OF ORE DEPOSITION IN THE UNCOMPAHGRE DISTRICT, OURAY COUNTY, COLORADO, 1940, pb, 76 pages, 2 plates, 4 figs., $ 30 B 911 / Singlewald, Q. D. and Butler, B. S. / ORE DEPOSITS IN THE VICINITY OF THE LONDON FAULT OF COLORADO, 1941, 74 pages, afb, 11 figures, 21 plates, 5 tables, $ 235 B 922 F / Lovering, T. S. / TUNGSTEN DEPOSITS OF BOULDER COUNTY, COLORADO, 1940, pb, 21 pages, 2 plates (in pocket), 6 figs., $ 25 B 928 A / Singewald, Q. D. / STRATIGRAPHY, STRUCTURE, AND MINERALIZATION IN THE BEAVER-TARRYALL AREA, PARK COUNTY, COLORADO, A Reconnaissance Report, 1942, pb, 44 pages, 5 plates (3 in pocket), 2 figs., $ 20 B 931 O / Goddard, E. N. and Lovering, T. S. / NICKEL DEPOSIT NEAR GOLD HILL, BOULDER COUNTY, COLORADO, 1942, pb, 12 pages, 2 plates (one in pocket), 1 figure, $ 8 B 955 B / Koschmann, A. H. / STRUCTURAL CONTROL OF THE GOLD DEPOSITS OF THE CRIPPLE CREEK DISTRICT, TELLER COUNTY, COLORADO, 1949, pb, 60 pages, 2 plates (in pocket), $ 48 B 970 / Singewald, Q. D. / GEOLOGY AND ORE DEPOSITS OF THE UPPER BLUE RIVER AREA, SUMMIT COUNTY, 1951, 74 pages, 7 plates, 17 figures, $ 30 B 988 A / Fischer, R. P. and Hilpert, L. S. / GEOLOGY OF THE URAVAN MINERAL BELT, 1952, pb, page 1 - 13, 3 plates, 5 figs., $ 8 B 988 B / Weir, D. B. / GEOLOGIC GUIDES TO PROSPECTING FOR CARNOTITE DEPOSITS ON COLORADO PLATEAU, 1952, pb, pages 15 - 27, 9 figs., $ 8 B 996 C / Hunt, C. B. / PLEISTOCENE AND RECENT DEPOSITS IN THE DENVER AREA, COLORADO, 1954, pb, pages 91 - 140, 4 plates (in pocket), 10 figs., $ 15 B 996 E / Malde, H. E. / SURFICIAL GEOLOGY OF THE LOUISVILLE QUADRANGLE, COLORADO, 1955, pages 217 - 257, 1 plate (in pocket), 9 figs., $ 8 B 1001 / Hill, D. R. and Tompkin, J. M. / GENERAL AND ENGINEERING GEOLOGY OF THE WRAY AREA, COLORADO AND NEBRASKA, 1953, pb, 64 pages, 1 plate, 10 figs., 3 tables, $ 6 B 1009 B / Weeks, A. D. and Thompson, M. E. / IDENTIFICATION AND OCCURRENCE OF URANIUM AND VANADIUM MINERALS FROM THE COLORADO PLATEAUS, 1954, pages 13 - 62, 2 tables, $ 12 B 1009 J / McKay, E. J. / CRITERIA FOR OUTLINING AREAS FAVORABLE FOR URANIUM DEPOSITS IN PARTS OF COLORADO AND UTAH, 1955, pb, pages 265 - 282, 2 plates (1 in pocket), 1 figure, $ 7 B 1011 / Thurston, W. R. / PEGMATITES OF THE CRYSTAL MOUNTAIN DISTRICT, LARIMER COUNTY, COLORADO, 1955, pb,185 pages, 13 plates, 32 figs., 16 tables, $ 35 B 1027 D / Bass, N. W., et.al. / GEOLOGY AND MINERAL FUELS OF PARTS OF ROUTT AND MOFFAT COUNTIES, COLORADO, 1955, pb, pages 149 - 250, 8 plates (in pocket), 2 figs., 11 tables, $ 30 B 1027 E / Singewald, Q. D. / SUGAR LOAF AND ST. KEVIN MINING DISTRICTS, LAKE COUNTY, 1955, pb, 48 pages, 2 plates, 8 figures, $ 20 B 1027 O / Olson, J. C. and Wallace, S. R. / THORIUM AND RARE-EARTH MINERALS IN POWDERHORN DISTRICT, GUNNISON COUNTY, COLORADO, 1956, pb, pages 693 - 723, 2 plates (in pocket), 1 figure, 2 tables, $ 20 B 1030 / McKelvey, V. E., et.al. / CONTRIBUTIONS TO THE GEOLOGY OF URANIUM, 1955, 1957, cl, 552 pages, 40 plates (in separate cloth bound slip case), 182 figs., 1 table, $ 175 [Contents: Search for uranium; Stratigraphy of parts of DeSoto and Hardee Counties, Florida; Uranium deposits at the base of Shinarump Conglomerate, Monument Valley, Arizona; Accuracy of ore-reserve estimates for uranium-vanadium deposits on the Colorado Plateau; Study of radioactivity in modern stream gravels as a method of prospecting; Geology and monazite content of the Goodrich quartzite, Palmer area, Marquette County, Michigan; Wallrock control of certain pitchblende deposits in Gold Gate Canyon, Jefferson County, Colorado; Uranium in black shale deposits, northern Rocky Mountains and Great Plains; Reconnaissance study of uranium deposits in the Red Desert, Sweetwater County, Wyoming; Stratigraphy of the Morrison Formation in part of Northwest New Mexico; Uranium deposits in oolitic limestone near Mayoworth, Johnson County, Wyoming; Uranium and copper deposits, Coyote District, Mora County, New Mexico; Description of indicator plants and methods of botanical prospecting for uranium deposits on the Colorado Plateau; Geology and uranium deposits of the Caribou Area, Boulder County, Colorado] B 1030 G / Adams, J. W. and Stugard, F., Jr. / WALL-ROCK CONTROL OF CERTAIN PITCHBLENDE DEPOSITS IN GOLDEN GATE CANYON, JEFFERSON COUNTY, COLORADO, 1956, pb, pages 187 - 209 pages, 3 plates (1 in pocket), 6 figs., 2 tables, $ 8 B 1030 N / Moore, F. B., Cavender, W. S. and Kaiser, E. P. / GEOLOGY AND URANIUM DEPOSITS OF THE CARIBOU AREA, BOULDER COUNTY, 1957, pb, 34 pages, 6 plates, 7 figures, 1 table, $ 15 B 1032 A / Sims, P. K., et.al. / URANIUM DEPOSITS IN THE EUREKA GULCH AREA, CENTRAL CITY DISTRICT, GILPIN COUNTY, COLORADO, 1955, pb, 31 pages, 1 plate (in pocket), 2 figs., 2 tables, $ 10 B 1032 B / Harrison, J. E. and Wells, J. D. / GEOLOGY AND ORE DEPOSITS OF THE FREELAND-LAMARTINE DISTRICT, CLEAR CREEK COUNTY, COLORADO, 1956, pb, 94 pages, 10 plates (in pocket), 25 figs., 10 tables, $ 24 B 1032 C / Drake, J. J., Jr. / GEOLOGY OF THE WOOD AND EAST CALHOUN MINES, CENTRAL CITY DISTRICT, GILPIN COUNTY, COLORADO, 1957, 41 pages, 4 plates (in pocket), 13 figs., 7 tables, $ 26 B 1032 D / Sims, P. K., et.al. / GEOLOGY OF THE COPPER KING URANIUM MINE, LARIMER COUNTY, COLORADO, 1958, 49 pages, 3 plates (in pocket), 16 figs., 5 tables, $ 30 B 1032 E / Wells, J. D. / PETROGRAPHY OF RADIOACTIVE TERTIARY IGNEOUS ROCKS, FRONT RANGE MINERAL BELT, COLORADO, 1960, pb, pages 223 - 272, 1 plate (in pocket), 9 figs., 1 table, $ 14 B 1042 F / Heyl, A. V. / ZONING OF THE BITTER CREEK VANADIUM-URANIUM DEPOSIT NEAR URAVAN, COLORADO, 1957, cl, 14 pages, 4 figs., $ 10 B 1042 H / Donnell, J. R. / PRELIMINARY REPORT ON OIL-SHALE RESOURCES OF PICEANCE CREEK BASIN, NORTHWESTERN COLORADO, 1957, pb, pages, 255 - 271, 1 plate (in pocket), 1 figure, 4 tables, $ 6 B 1042 O / Johnson, R. B. / GEOLOGY AND COAL RESOURCES OF THE WALSENBURG AREA, HUERFANO COUNTY, COLORADO, 1958, pb, pages 557 - 583, 3 plates (in pocket), 4 tables, $ 7 B 1046 N / Lovering, T. G. and Beroni, E. P. / PRELIMINARY STUDY OF RADIOACTIVE LIMONITE IN COLORADO, UTAH, AND WYOMING, 1959, pb, pages 339-384, 1 plate, 14 figs., 14 tables, $ 13 B 1051 / Wood, G. H. Jr., Johnson, R. B., and Dixon, G. H. / GEOLOGY AND COAL RESOURCES OF THE STARKVILLE-WESTON AREA, LAS ANIMAS COUNTY, COLORADO, 1957, pb, 68 pages, 10 plates, 5 tables, $ 45 B 1071 D / Johnson, R B. / GEOLOGY OF THE HUERFANO PARK AREA, HUERFANO AND CUSTER COUNTIES, COLORADO, 1959, pb, pages, 87 - 118, 6 plates, 1 figure, $ 22 B 1071 D / Johnson, R B. / GEOLOGY OF THE HUERFANO PARK AREA, HUERFANO AND CUSTER COUNTIES, COLORADO, 1959, afb, pages, 87 - 118, 6 plates, 1 figure, $ 28 B 1072 C / Landis, E. R. / COAL RESOURCES OF COLORADO, 1959, pb, pages 131 - 232, 2 plates, 2 figs., $ 15 B 1072 E / Bush, A. L., et. al. / AREAL GEOLOGY OF THE PLACERVILLE QUADRANGLE, SAN MIGUEL COUNTY, COLORADO, 1959, pb, pages, 299 - 384, 5 plates, 4 figs., $ 15 B 1072 G / Harbour, R. L. and Dixon G. H. / COAL RESOURCES OF TRINIDAD-AGUILAR AREA, LAS ANIMAS AND HUERFANO COUNTIES, COLORADO, 1959, pb, pages, 445 - 488, 1 figure, 5 plates, $ 26 B 1072 H / Christman, R. A., et.al. / GEOLOGY AND THORIUM DEPOSITS OF THE WET MOUNTAINS, COLORADO, A PROGRESS REPORT, 1959, 42 pages, 2 plates (in pocket), 3 figs., 7 tables, $ 16 B 1072 M / Wanek, A. A. / GEOLOGY AND FUEL RESOURCES OF THE MESA VERDE AREA, MONTEZUMA AND LA PLATA COUNTIES, COLORADO, 1959, pb, pages, 667 - 721, 13 plates, 1 figure, 7 tables, $ 15 B 1074 A / Botinelly, T. And Weeks, A. D. / MINERALOGIC CLASSIFICATION OF URANIUM-VANADIUM DEPOSITS OF THE COLORADO PLATEAU, 1957, pb, 5 pages, 1 plate, $ 5 B 1082 F / Steven, T. A. / GEOLOGY AND FLUORSPAR DEPOSITS, NORTHGATE DISTRICT, COLORADO, 1960, pb, pages 323 - 422, 6 plates, 9 figs., 2 tables, $ 25 B 1082 G / Bush, A. L., Marsh, O. T., and Taylor, R. B. / AREAL GEOLOGY OF THE LITTLE CONE QUADRANGLE, COLORADO, 1960, pb, pages 423 - 492, 2 plates, 5 figs., $ 20 B 1082 L / Donnell, J. R. / TERTIARY GEOLOGY AND OIL-SHALE RESOURCES OF THE PICEANCE CREEK BASIN BETWEEN THE COLORADO AND WHITE RIVERS, NORTHWESTERN COLORADO, 1961, pb, pages 835 - 891, 12 plates (7 in pocket), 3 figs., 5 tables, $ 12 B 1084 E / Newman, W. L. and Elston, D. P. / DISTRIBUTION OF CHEMICAL ELEMENTS IN THE SALT WASH MEMBER OF THE MORRISON FORMATION, DO DANDY AREA, MONTROSE COUNTY, COLORADO, 1959, bp, pages 117 - 150, 3 figs., 3 tables, $ 5 B 1087 A / Wilmarth, V. R. / GEOLOGY OF THE GARO URANIUM-VANADIUM COPPER DEPOSIT, PARK COUNTY, COLORADO, 1959, pb, 21 pages, 5 plates (in pocket), 2 figs., 2 tables, $ 12 B 1101 / Fischer, R. P. / VANADIUM-URANIUM DEPOSITS OF THE RIFLE CREEK AREA, GARFIELD COUNTY, COLORADO, 1960, pb, 52 pages, 10 plates (4 in pocket), 8 figs., 3 tables, $ 10 B 1107 B / Bowers, H. E. and Shawe, D. R. / HEAVY MINERALS AS GUIDES TO URANIUM-VANADIUM ORE DEPOSITS IN THE SLICK ROCK DISTRICT, COLORADO, 1961, pb, pages 269 - 218, 20 figs., 6 tables, $ 8 B 1112 E / Johnson, R. B. / COAL RESOURCES OF THE TRINIDAD COAL FIELD IN HUERFANO AND LAS ANIMAS COUNTIES, COLORADO, 1961, pb, pages 129 - 180, 1 plate (in pocket), 4 figs., 5 tables, $ 20 B 1112 G / Vhay, J. S. / GEOLOGY AND MINERAL DEPOSITS OF THE AREA SOUTH OF TELLURIDE, COLORADO, 1962, pb, 31 pages, 3 figs., 7 plates (in pocket), $ 75 B 1114 / Eckel, E. B. / MINERALS OF COLORADO: A 100 - Year Record, 1961, 399 pages, pb, with original plate, $ 55 B 1121 / White, G. W., et.al. / CONTRIBUTIONS TO ECONOMIC GEOLOGY, 1960: CLASSIFICATION OF WISCONSIN GLACIAL DEPOSITS IN NORTHEASTERN OHIO; ILLINOIAN OUTWASH IN SOUTHEASTERN PENNSYLVANIA; EOLIAN DEPOSITS OF THE MANTANUSKA VALLEY AGRICULTURAL AREA, ALASKA; GEOLOGY OF THE LINVILLE QUADRANGLE, NORTH CAROLINA - TENNESSEE; GEOLOGY AND PETROLOGY OF TWO STOCKS OF LAYERED GABBRO IN THE FAIRWEATHER RANGE, ALABAMA; GEOLOGY OF THE AMERICAN FALLS QUADRANGLE, IDAHO; PALEOZOIC AND CENOZOIC ROCKS IN THE ALPINE NATRIOSO AREA, APACHE COUNTY, ARIZONA; SPLIT ROCK FORMATION (MIOCENE) AND MOONSTONE FORMATION (PLIOCENE) IN CENTRAL WYOMING; GEOLOGY OF DUCK CREEK PASS QUADRANGLE, MONTANA; GEOLOGY OF THE EASTERN PART OF THE MOUNT FAIRWEATHER QUADRANGLE, GLACIER BAY, ALASKA; GEOLOGY OF THE LITTLETON QUADRANGLE, JEFFERSON, DOUGLAS, AND ARAPAHOE COUNTY, COLORADO; GEOLOGY OF THE INYAN KARA QUADRANGLE, CROOK AND WESTERN COUNTIES, WYOMING, 1963, cl, 15 plates (in separate slip case bound to match the cloth text volume), 78 figs., 22 tables, $ 60 B 1121 L / Scott, G. R. / GEOLOGY OF THE LITTLETON QUADRANGLE, JEFFERSON, DOUGLAS, AND ARAPAHOE COUNTIES, COLORADO, 1967, pb, 53 pages, 1 plate, 1 figure, 2 tables, $ 8 B 1135 ABC / Heyl, A. V., et.al. / OXIDIZED ZINC DEPOSITS OF THE UNITED STATES, PART 1. GENERAL GEOLOGY, PART 2. UTAH, AND PART 3. COLORADO, 1962, cl, 254 pages, 16 plates (in pocket), 31 figs., 3 tables, $ 125 B 1135 C / Heyl, A. V. / OXIDIZED ZINC DEPOSITS OF THE UNITED STATES PART 3. COLORADO, 1964, pb, 98 pages, 6 plates (in pocket), 7 figs., 10 tables, $ 38 B 1142 / Campbell, A. B., et. al. / CONTRIBUTIONS TO ECONOMIC GEOLOGY, 1961, cl, 475 pages, 40 plates (in red cloth slipcase, 47 figs., 17 tables, $ 85 [Contents: A - Geology and Mineral Deposits of the Twin Crags Quadrangle, Idaho; B - Geology of the Ewing Quadrangle, Kentucky and Virginia; C - A Preliminary report on the Precambrian iron deposits near Atlantic City, Wyoming; D - Economic Geology of the Plant City Quadrangle, Florida; E - Geology of the Calamity Peak Area, South Dakota; F - Geology of the magnesite belt of Stevens County, Washington; G - Geology of the Red Devil Quicksilver Mine, Alaska; H - Future petroleum producing capacity of the United States; I - Geology of some copper deposits in North Carolina; J - Geology of Glenwood Springs Quadrangle and Vicinity, Northwestern Colorado; K - Geology of the Eureka Quadrangle, Utah; L - Geology of the Tintic Junction Quadrangle, Utah; M - Geology of the beryllium deposits in the Thomas Range, Utah] B 1142 J / Bass. N. W. and Northrup, S. R. / GEOLOGY OF GLENWOOD SPRINGS QUADRANGLE AND VICINITY, NORTHWESTERN COLORADO, 1963, pb, 74 pages, 2 plates (in pocket), 1 figure, 2 tables, $ 30 B 1147 / Granger, H. C., et. al. / CONTRIBUTIONS TO THE GEOLOGY OF URANIUM, 1961 - 1963, 1962 - 1964, cl, 400 pages, 28 plates (in separate slipcase), 64 figs., 43 tables, $ 125 [This is a complete cloth bound volume containing the following parts: A - Reconnaissance study of Uranium Deposits of Arizona; B - Uranium in some rocks of Pennsylvanian age in Oklahoma, Kansas and Missouri; C - Clay minerals in Triassic rocks of the Colorado Plateau; D - Geology and Uranium Deposits of the southern part of the Powder River Basin, Wyoming; E - Distribution of elements in Colorado Plateau uranium deposits - A preliminary report; F - Geology and Uranium Deposits at Crooks Gap, Fremont County, Wyoming] B 1159 / Sims, P. K. and Sheridan, D. M. / GEOLOGY OF URANIUM DEPOSITS IN THE FRONT RANGE, COLORADO, 1964, pb, 116 pages, 5 plates (in pocket), 26 figs., 10 tables, $ 32 B 1162 D / Bergendahl, M. H. / GEOLOGY OF THE NORTHERN PART OF THE TENMILE RANGE, SUMMIT COUNTY, COLORADO, 1963, 19 pages, 1 plate (in pocket), 2 tables, $ 15 B 1181 C / Peterson, W. L. / GEOLOGY OF THE PLATTE CANYON QUADRANGLE, COLORADO, 1964, pb, 23 pages, 1 plate (in pocket), 4 figs., 1 table, $ 10 B 1181 D / Hansen, W. R. / CURECANTI PLUTON, AN UNUSUAL INTRUSIVE BODY IN THE BLACK CANYON OF THE GUNNISON, COLORADO, 1964, pb, 15 pages, 5 figs., 2 tables, $ 6 B 1182 A / Moench, R. H. / GEOLOGY OF PRECAMBRIAN ROCKS, IDAHO SPRINGS, COLORADO, 1964, pb, 70 pages, 2 plates (in pocket), 11 figs., 9 tables, $ 26 B 1188 / Hail, W. J., Jr. / GEOLOGY OF NORTHWESTERN NORTH PARK, COLORADO, 1965, pb, 133 pages, 5 plates (in a separate slipcase), 15 figs., 1 table, $ 100 B 1191 / Hansen, W. R. / THE BLACK CANYON OF THE GUNNISON, TODAY AND YESTERDAY, 76 pages, 23 figs., $ 20 B 1194 J / Dyni, J. R. and Cullins, H. L. / MEEKER AND LOYD SANDSTONE MEMBERS OF THE MANCOS SHALE, MOFFAT AND RIO BLANCO COUNTIES, COLORADO, 1965, 7 pages, 2 figs., $ 2 B 1208 / Moench, R. H. and Drake, A. A., Jr. / ECONOMIC GEOLOGY OF THE IDAHO SPRINGS DISTRICT, CLEAR CREEK AND GILPIN COUNTIES, COLORADO, 1966, pb, 91 pages, 3 plates (in pocket), 8 figs., 10 tables, $ 100 B 1221 D / Wells, J. D. / GEOLOGY OF THE ELDORADO SPRINGS QUADRANGLE, BOULDER AND JEFFERSON COUNTIES, COLORADO, 1967, pb, 85 pages, 1 plate (in pocket), 6 figs., 14 tables, $ 35 B 1227 / Bromfield, C. S. / GEOLOGY OF THE MOUNT WILSON QUADRANLGE, WESTERN SAN JUAN MOUNTAINS, COLORADO, 1967, pb, 100 pages, 6 plates (in pocket), 23 figs., 7 tables, $ 30 B 1230 C / Mallory, W. W., et.al. / MINERAL RESOURCES OF THE FLAT TOPS PRIMITIVE AREA, COLORADO, 1966, pb, 30 pages, 2 plates (in pocket), 4 figs., 4 tables, $ 16 B 1231 / Hawley, C. C. and Moore, F. B. / GEOLOGY AND ORE DEPOSITS OF THE LAWSON - DUMONT - FALL RIVER DISTRICT, CLEAR CREEK COUNTY, COLORADO, 1967, 89 pages, 4 plates, 8 figs., 20 tables, $ 58 B 1241 D / Norton, J. J. / TERNARY DIAGRAMS OF THE QUARTZ-FELDSPAR CONTENT OF PEGMATITES IN COLORADO, 1966, pb, 16 pages, 1 plate (in pocket), 1 table, $ 5 B 1251 A / Shawe, D. R. and Parker, R. L. / MAFIC-ULTRAMAGIC LAYERED INTRUSION AT IRON MOUNTAIN, FREMONT COUNTY, COLORADO, 1967, pb, 28 pages,1 plate (in pocket), 12 figs., 3 tables, $ 5 B 1251 C / Olson, J. C., Hedlund, D. C., and Hansen, W. R. / TERTIARY VOLCANIC STRATIGRAPHY IN THE POWDERHORN-BLACK CANYON REGION, GUNNISON AND MONTROSE COUNTIES, COLORADO, 1968, pb, 29 pages, 1 plate (in pocket), 12 figs., 1 table, $ 5 B 1251 E / Gable, D. J. / GEOLOGY OF THE CRYSTALLINE ROCKS IN THE WESTERN PART OF THE MORRISON QUADRANGLE, JEFFERSON COUNTY, COLORADO, 1968, pb, 45 pages, 1 plate (in pocket), 9 figs., 17 tables, $ 12 B 1257 / Hail, W. J. / GEOLOGY OF SOUTHWESTERN NORTH PARK AND VICINITY, COLORADO, 1968, pb, 119 pages, 3 plates in slipcase, 8 figs., 4 tables, $ 100 B 1261 C / Fischer, R. P., et.al. / MINERAL RESOURCES OF THE UNCOMPAHGRE PRIMITIVE AREA, COLORADO, 1968, pb, 89 pages, 3 plates, 19 figs., 3 tables, $ 45 B 1261 C / Fischer, R. P., et.al. / MINERAL RESOURCES OF THE UNCOMPAHGRE PRIMITIVE AREA, COLORADO, 1968, afb, 89 pages, 3 plates, 19 figs., 3 tables, $ 55 B 1261 F / Steven, T. A., et.al. / MINERAL RESOURCES OF THE SAN JUAN PRIMITIVE AREA, COLORADO, 1969, pb, 187 pages, 2 plates, 20 figs., $ 48 B 1261 F / Steven, T. A., et.al. / MINERAL RESOURCES OF THE SAN JUAN PRIMITIVE AREA, COLORADO, 1969, afb, 187 pages, 2 plates, 20 figs., $ 58 B 1272 F / Barker, F. / GOLD INVESTIGATIONS IN PRECAMBRIAN CLASTIC AND PELTIC ROCKS, SOUTHWESTERN COLORADO AND NORTHERN NEW MEXICO, 1969, pb, 22 pages, 7 figs., 4 tables, $ 7 B 1274 N / Pipiringos, G. N., et.al. / THE CHINLE (UPPER TRIASSIC) AND SUNDANCE (UPPER JURASSIC) FORMATIONS IN NORTH-CENTRAL COLORADO, 1969, pb, 35 pages, 3 figs., 11 stratigraphic sections, 1 table, $ 8 B 1278 B / Curtin, G. C., et.al. / UTILIZATION OF MULL (FOREST HUMUS LAYER) IN GEOCHEMICAL EXPLORATION IN THE EMPIRE DISTRICT, CLEAR CREEK COUNTY, COLORADO, 1971, pb, 39 pages, 25 figs., 3 tables, $ 6 B 1278 C / Chaffee, M. A. / DISTRIBUTION AND ABUNDANCE OF GOLD AND OTHER SELECTED ELEMENTS IN ALTERED BEDROCK, EMPIRE MINING DISTRICT, CLEAR CREEK COUNTY, COLORADO, 1972, pb, 23 pages, 16 figs., 3 tables, $ 6 B 1311 C / Barker, F., Peterman, Z. E., and Marvin, R. F. / PRECAMBRIAN MELASYENITE OF UTE CREEK, SAN JUAN MOUNTAINS, COLORADO — CHEMISTRY, PETROLOGY, AND STRONTIUM ISOTOPES, 1970, pb, 15 pages, 4 figs., 4 tables, $ 4 B 1311 E / Mallory, W. W. / THE EAGLE VALLEY EVAPORITE, NORTHWEST COLORADO - A REGIONAL SYNTHESIS, 1971, pb, 37 pages, 3 plates (in pocket), 8 figs., 1 table, $ 16 B 1324 F / Freeman, V. L. / STRATIGRAPHY OF THE STATE BRIDGE FORMATION IN THE WOODY CREEK QUADRANGLE, PITKIN AND EAGLE COUNTIES, COLORADO, 1971, pb, 17 pages, 3 figs., $ 2 B 1349 / Segerstrom, K. and Young, E. J. / GENERAL GEOLOGY OF THE HAHNS PEAK AND FARWELL MOUNTAIN QUADRANGLES, ROUTT COUNTY, COLORADO, 1972, pb, 63 pages, 1 plate, 5 figs., 7 tables, $ 16 B 1353 A / Bromfield, C. S. and Williams, F. E. / MINERAL RESOURCES OF THE WILSON MOUNTAINS PRIMITIVE AREA, COLORADO, 1972, pb, 79 pages, 2 plates (in pocket), 11 figs., 8 tables, $ 18 B 1364 / Burbank, W. S., et.al. / ARSENIC AS AN INDICATOR ELEMENT FOR MINERALIZED VOLCANIC PIPES IN THE RED MOUNTAINS AREA, WESTERN SAN JUAN MOUNTAINS, COLORADO, 1972, pb, 31 pages, 11 figs., 9 tables, $ 6 B 1367 / Young, E. J. and Segerstrom, K. / A DISSEMINATED SILVER-LEAD-ZINC SULFIDE OCCURRENCE AT HAHNS PEAK, ROUTT COUNTY, COLORADO, 1973, pb, 33 pages, 3 plates (in pocket), 5 tables, 12 figs., $ 18 B 1381 / Fisher, F. S. and Leedy, W. P. / GEOCHEMICAL CHARACTERISTICS OF MINERALIZED BRECCIA PIPES IN THE RED MOUNTAIN DISTRICT, SAN JUAN MOUNTAINS, COLORADO, 1973, afb, 43 pages, 12 figs., 3 tables, $ 20 B 1381 / Fisher, F. S. and Leedy, W. P. / GEOCHEMICAL CHARACTERISTICS OF MINERALIZED BRECCIA PIPES IN THE RED MOUNTAIN DISTRICT, SAN JUAN MOUNTAINS, COLORADO, 1973, pb, 43 pages, 12 figs., 3 tables, $ 15 B 1382 C / Hildebrand, F. A. and Mosier, E. L. / ARGENTIAN CRYPTOMELANE AND BROMARGYRITE IN VOLCANIC ROCKS NEAR SILVER CLIFF, COLORADO, 1974, pb, 23 pages, 5 figs., 5 tables, $ 8 B 1391 E / Steven, T. A., et.al. / MINERAL RESOURCES OF STUDY AREAS CONTIGUOUS TO THE UNCOMPAHGRE PRIMITIVE AREA, SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO, 1977, pb, 126 pages, 3 plates (in pocket), 22 figs., 13 tables, $ 75 B 1392 / Gable, D. and Smith, V. C. / HORNBLENDES FROM A REGION OF HIGH-GRADE METAMORPHISM, FRONT RANGE, COLORADO, 1975, pb, 35 pages, 12 figs., 7 tables, $ 4 B 1394 F / Duncan, D. C., et.al. / FOUR NEWLY NAMES TONGUES OF EOCENE RIVER FORMATION, NORTHERN PICEANCE CREEK BASIN, COLORADO, 1974, pb, 13 pages, 4 figs., $ 4 B 1394 H / Wrucke, C. T. / THE WHITEHORN GRANODIORITE OF THE ARKANSAS VALLEY IN CENTRAL COLORADO, 1974, 8 pages, 2 figs., 1 table, $ 3 B 1395 C / Epis, R. C. and Chapin, C. E. / STRATIGRAPHIC NOMENCLATURE OF THE THIRTYNINE MILE VOLCANIC FIELD, CENTRAL COLORADO, 1974, pb, 23 pages, 2 figs., 1 table, $ 4 B 1395 G / O’Sullivan, R. B. / COUGHS CREEK TONGUE – A NEW TONGUE OF THE EOCENE GREEN RIVER FORMATION, PICEANCE CREEK BASIN, COLORADO, 1975, pb, 2 figs., $ 3 B 1405 F / Sanders, G. F., et.al. / THE BUFFALO PEAKS ANDESITE OF CENTRAL COLORADO, 1976, pb, 8 pages, 4 figs., 1 table, $ 3 B 1420 / Steven, T. A., et.al. / MINERAL RESOURCES OF THE LA GARITA WILDERNESS, SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO, 1977, pb, 65 pages, 2 plates, 6 figs., 8 tables, $ 25 B 1422 D / Tweto, O. / NOMENCLATURE OF PRECAMBRIAN ROCKS IN COLORADO, 1977, pb, 22 pages, 1 figure, 1 table, $ 5 B 1422 E / Hail, W. J., Jr. / STEWART GULCH OF THE EOCENE GREEN RIVER FORMATION, PICEANCE CREEK BASIN, COLORADO, 1977, pb, 8 pages, 3 figs., $ 3 B 1434 / Schmitt, L. J. and Raymond, W. H. / GEOLOGY AND MINERAL DEPOSITS OF THE NEEDLE MOUNTAINS DISTRICT, SOUTHWESTERN COLORADO, 1977, pb, 40 pages, 1 plate (in pocket), 7 figs., 7 tables, $ 22 B 1463 / Pearson, R. C., et.al. / MINERAL RESOURCES OF THE INDIAN PEAKS STUDY AREA, BOULDER AND GRAND COUNTIES, COLORADO, 1980, pb, 109 pages, 2 plates (in pocket), 12 figs., 6 tables, $ 30 B 1479 / Dean, W. E., et.al. / GEOCHEMICAL VARIATION IN SOILS IN THE PICEANCE CREEK BASIN, WESTERN COLORADO, 1979, pb, 47 pages, 10 figs., 8 tables, $ 5 B 1482 B / Johnson, R. C. and May, F. / A STUDY OF THE CRETACEOUS - TERTIARY UNCONFORMITY IN THE PICEANCE CREEK BASIN, COLORADO: The Underlying Ohio Creek Formation (Upper Cretaceous) Redefined as a Member of the Hunter Canyon or Mesaverde Formation, 1980, pb, 27 pages, 15 figs., $ 4 B 1508 / Lohman, S. W. / THE GEOLOGIC STORY OF COLORADO NATIONAL MONUMENT, 142 pages, 61 figs., $ 18 B 1524 / Brock, M. R. and Gaskill, D. R. / CHAMA-SOUTHERN SAN JUAN MOUNTAINS, COLORADO, 1985, pb, 152 pages, 3 plates, 1 figure, text and plates in slip-case, $ 30 B 1529 G / Tweto, O. / LAS ANIMAS FORMATION (UPPER Pc) IN THE SUBSURFACE OF SOUTHEASTERN COLORADO, 1983, pb, 13 pages, 3 figs., 1 table, $ 5 B 1529 I / NEW NAMES FOR UNITS IN THE LOWER PART OF THE GREEN RIVER FORMATION, PICEANCE CREEK BASIN, COLORADO, 1984, pb, 20 pages, 1 plate (in pocket), 12 figs., $ 8 B 1550 / Sheridan, D. M. and Raymond, W. H. / PRECAMBRIAN DEPOSITS OF ZINC-COPPER-LEAD SULFIDES AND ZINC SPINEL (GAHNITE) IN COLORADO, 1984, pb, 31 pages, 9 figs., 4 tables, $ 6 B 1554 / Synder, G. L., et.al. / MINERAL RESOURCES OF THE MOUNT ZIRKEL WILDERNESS AND NORTHERN PARK RANGE VICINITY, JACKSON AND ROUTT COUNTIES, COLORADO, 1987, pb, 236 pages, 2 plates (in pocket), 109 figs., $ 30 B 1554 / Synder, G. L., et.al. / MINERAL RESOURCES OF THE MOUNT ZIRKEL WILDERNESS AND NORTHERN PARK RANGE VICINITY, JACKSON AND ROUTT COUNTIES, COLORADO, 1987, cl, 236 pages, 2 plates (in pocket), 109 figs., $ 50 B 1636 / Van Leonen, R. E., et.al. / MINERAL RESOURCE POTENTIAL OF MOUNT MASSIVE WILDERNESS, LAKE COUNTY, COLORADO, 1989, pb, 18 pages, 2 plates (in pocket), 3 figs., 2 tables, $ 9 B 1638 / Taylor, R. B., et.al. / AN ASSESSMENT OF THE MINERAL RESSOURCE POTENTIAL OF THE SAN ISABEL NATIONAL FOREST, SOUTH-CENTRAL COLORADO, 1984, afb, 42 pages, 2 plates (in pocket), 14 figs., 1 table, $ 7 B 1715 A / Hon, K., et.al. / MINERAL RESOURCES OF THE AMERICAN FLATS WILDERNESS STUDY AREA, OURAY AND HINSDALE COUNTIES, COLORADO, 1987, pb, 17 pages, 1 plate (in pocket), 4 figs., $ 6 B 1715 B / Sanford, R. F., et.al. / MINERAL RESOURCES OF THE REDCLOUD PEAK AND HANDIES PEAK WILDERNESS STUDY AREAS, HINSDALE COUNTY, COLORADO, 1987, pb, 35 pages, 2 plates (in pocket), 12 figs., 2 tables, $ 10 B 1715 C / Gerlitz, C. N., et.al. / MINERAL RESOURCES OF THE DOLORES RIVER CANYON WILDERNESS STUDY AREA, MONTROSE AND SAN MIGUEL COUNTIES, COLORADO, 1988, pb, 16 pages, 1 plate (in pocket), 4 figs., $ 7 B 1715 D / Armbrustmacher, T. J, et.al. / MINERAL RESOURCES OF THE GUNNISON GORGE WILDERNESS STUDY AREA, MONTROSE AND DELTA COUNTY, COLORADO, 1989, pb, 14 pages, 1 plate (in pocket), 4 figs., $ 6 B 1716 A / Lindsey, D. A., et.al. / MINERAL RESOURCES OF THE BLACK CANYON AND SOUTH PINEY CREEK WILDERNESS STUDY AREAS, SAGUACHE COUNTY, COLORADO, 1985, pb, 15 pages, 1 plate (in pocket), 3 figs., 3 tables, $ 7 B 1716 B / Lindsey, D. A., et.al. / MINERAL RESOURCES OF THE BEAVER CREEK WILDERNESS STUDY AREA, FREMONT, EL PASO, AND TELLER COUNTIES, COLORADO, 1986, pb, 17 pages, 1 plate (in pocket), 3 figs., 4 tables, $ 7 B 1716 C / Leibold, A. M., et.al. / MINERAL RESOURCES OF THE BROWNS CANYON WILDERNESS STUDY AREA, CHAFFEE COUNTY, COLORADO, 1986, pb, 14 pages, 1 map (in pocket), 5 figs., $ 7 B 1716 D / Johnson, B. R., et.al. / MINERAL RESOURCES OF THE PAPA KEAL AND ZAPATA CREEK WILDERNESS STUDY AREAS, ALAMOSA COUNTY, COLORADO, 1986, pb, 6 pages, 1 plate (in pocket), 2 figs., $ 5 B 1787 ABC / Johnson, S. Y., et.al. / SEDIMENTOLOGY AND PALEOGEOGRAPHIC SIGNIFICANCE OF SIX FLUVIAL SANDSTONE BODIES IN THE MAROON FORMATION, EAGLE BASIN...EAGLE VALLEY EVAPORIATE...BELDEN FORMATION, 1987, pb, 36 pages,1 plate (in pocket), 15 figs., $ 8 B 1787 E / Johnson, R. C. / GEOLOGIC HISTORY AND HYDROCARBON POTENTIAL OF LATE CRETACEOUS-AGE LOW-PERMEABILITY RESERVOIRS, PICEANCE BASIN, WESTERN COLORADO, 1989, pb, 51 pages, 2 plates (in pocket), 20 figs., 3 tables, $ 6 B 1787 O / Hail, W. J., Jr. / GEOLOGY OF THE LOWER YELLOW CREEK AREA, NW COLORADO, 1990, pb, 12 figs., 3 tables, $ 5 B 1787 W / Dubiel, R. F. / SEDIMENTOLOGY AND DEPOSITIONAL HISTORY OF THE UPPER TRIASSIC CHINLE FORMATION IN THE UINTA, PICEANCE, AND EAGLE BASINS, NORTHWESTERN COLORADO AND NORTHWESTERN UTAH, 1992, pb, 25 pages, 15 figs., 1 table, $ 6 B 1787 AA / Karachewski, J. A. / FACIES ANALYSIS, GENETIC SEQUENCES, AND PALEOGEOGRAPHY OF THE LOWER PART OF THE MINTURN FORMATION, SE EAGLE BASIN, COLORADO, 1992, pb, 30 pages, 1 plate (in pocket), 32 figs., 2 tables, $ 6 B 1797 / Nash, J. T. / GEOLOGY AND GEOCHEMISTRY OF THE PITCH URANIUM MINE AREA, SAGUACHE COUNTY, COLORADO, 1988, pb, 38 pages, 16 figs., 5 tables, $ 10 B 1857 C / Wallace, A. R. / GOLD IN THE CENTRAL CITY MINING DISTRICT, COLORADO, GPO, 1989, pb, 47 pages, also includes articles on the Bald Mountain Gold Mining Region, Northern Black Hills; Gold Deposits in the Park City Mining District, Utah; and Gold in the Eureka Mining District, Nevada, 14 figs., 5 tables, $ 20 B 1857 F / Fisher, F. S., et.al. / GOLD DEPOSITS IN THE SNEFFELS-TELLURIDE AND CAMP BIRD MINING DISTRICTS, SAN JUAN MOUTAINS, GOLD IN THE ALMA MINING DISTRICT, PRECIOUS METALS IN THE LEADVILLE MINING DISTRICT, COLORADO, also contains an article on the Tintic Mining District, Utah, 1990, 49 pages, 22 figs., 2 tables, $ 20 B 1923 / Wolfe, J. A. and Schorn, H. E. / TAXONOMIC REVISION OF THE SPERMATOPSIDA OF THE OLIGOCENE CREEDE FLORA, SOUTHERN COLORADO, 1990, pb, 40 pages, 13 plates, 13 figs., 2 tables, $ 15 B 1927 / O’Sullivan, R. B. / THE JURASSIC WANAKAH AND MORRISON FORMATIONS IN THE TELLURIDE-OURAY-WESTERN BLACK CANYON AREA OF SOUTHERN COLORADO, 1992, pb, 24 pages, 11 figs., 2 tables, $ 6 B 1936 / Bove, D. J. and Hon, K. / COMPOSITIONAL CHANGES INDUCED BY HYDROTHERMAL ALTERATION AT THE RED MOUNTAIN ALUNITE DEPOSIT, LAKE CITY, COLORADO, 1990, pb, 21 pages, 14 figs., 3 tables, $ 7 B 2000 CD / Friedman, J. D., et.al. / TECTONIC TRENDS OF THE NORTHERN PART OF THE PARADOX BASIN, SOUTHEASTERN UTAH AND SOUTHWESTERN COLORADO, AS DERIVED FROM LANDSAT MULTISPECTRAL SCANNER IMAGING AND GEOPHYSICAL AND GEOLOGIC MAPPING <and> UNCONTROLLED X-BAND RADAR MOSAIC OF THE WESTERN PART OF THE MOAB 1X2 QUADRANGLE, SOUTHEASTERN UTAH AND SOUTHWESTERN COLORADO, 1994, pb, 40 pages, 28 figs., 1 table, 1 plate (in pocket), $ 16 B 2000 H / Cappa, J. A. and Rice, D. D. / CARBON DIOXIDE IN MISSISSIPPIAN ROCKS OF THE PARADOX BASIN AND ADJACENT AREAS, COLORADO, UTAH, NEW MEXICO, AND ARIZONA, 1995, pb, 21 pages, 7 plates (in pocket), 7 figs., $ 15 B 2000 O / Nuccio, V. F. and Condon, S. M. / BURIAL AND THERMAL HISTORY OF THE PARADOX BASIN, UTAH AND COLORADO, AND PETROLEUM POTENTIAL OF THE MIDDLE PENNSYLVANIAN PARADOX FORMATION, 1996, pb, 41 pages, 2 plates (in pocket), 17 figs., 4 tables, $ 12 B 2061 / Hansley, P. L. and Sheppard, R. A. / DISTRIBUTION AND PROPERTIES OF CLINOPTILOLITE-BEARING TUFFS IN THE UPPER JURASSIC MORRISON FORMATION ON THE UTE MOUNTAIN, UTE RESERVATION, SW COLORADO AND NW NEW MEXICO, 1993, pb, 4 figs., 6 tables, $ 5 B 2083 / du Bray, E. A., Ed. / MINERAL RESOURCE POTENTIAL AND GEOLOGY OF CORONADO NATIONAL FOREST, SOUTHEASTERN ARIZONA AND SOUTHWESTERN NEW MEXICO, 1996, pb, 211 pages, 32 plates (in box), $ 45 B 2109 / Cunningham, C. G., et.al. / AGES OF SELECTED INTRUSIVE ROCKS AND ASSOCIATED ORE DEPOSITS IN THE COLORADO MINERAL BELT, 1994, pb, 31 pages, 4 figs., 2 tables, $ 10 B 2116 / Lindsay, D. A. and Clark, R. F. / COPPER AND URANIUM IN PENNSYLVANIAN AND PERMIAN SEDIMENTARY ROCKS, NORTHERN SANGRE DE CRISTO RANGE, COLORADO, 1995, pb, 23 pages, 12 figs., 3 tables, $ 7 B 2127 / Van Loenen, R. E. and Gibbons, A. B. / MINERAL RESOURCE POTENTIAL AND GEOLOGY OF THE SAN JUAN NATIONAL FOREST, COLORADO, 1997, pb, 140 pages, 4 plates (in pocket), 67 figs., 7 tables, $ 25 B 2157 / Pitman, J. K. / ORIGIN OF PRIMARY AND DIAGENETIC CARBONATES IN THE LACUSTRINE GREEN RIVER FORMATION (EOCENE), COLORADO AND UTAH, 1996, pb, 17 pages, 10 figs., 3 tables, $ 8 Colorado USGS Circulars C 68 / Maher, J. C. / DETAILED SECTIONS OF PRE-PENNSYLVANIAN ROCKS ALONG THE FRONT RANGE OF COLORADO, 1950, 20 pages, 1 map, 1 table, $ 10 C 186 / Moore, F. B., et.al. / PITCHBLENDE DEPOSITS AT THE WOOD AND CALHOUN MINES, CENTRAL CITY MINING DISTRICT, GILPIN COUNTY, Colorado, 1952, 8 pages, 3 plates (in pocket), 2 figs., 2 tables, $ 20 C 215 / King, R. U., et.al. / URANIUM IN THE METAL-MINING DISTRICTS OF COLORADO, 10 pages, 1 plate, 2 figs., $ 20 C 290 / Christman, R. A., et.al. / THORIUM INVESTIGATION 1960-52, WET MOUNTAINS, COLORADO, 1953, pb, 40 pages, 5 plates (in pocket) 15 figs., 10 tables, $ 25 C 294 / Pierson, C. T. and Singewald, Q. D. / RESULTS OF RECONNAISSANCE FOR RADIOACTIVE MINERALS IN PARTS OF THE ALMA DISTRICT, Park County, Colorado, 1953, 9 pages, 1 plate, 2 figs., 2 tables, $ 20 C 320 / Adams, J. W., et.al. / URANIUM OCCURRENCES IN THE GOLDEN GATE CANYON AND RALSTON CREEK AREAS, JEFFERSON COUNTY, Colorado, 1953, 16 plates, 9 figs., 1 tables, $ 20 C 345 / Wells, J. D. and Harrison, J. E. / RADIOACTIVITY RECONNAISSANCE OF PART OF NORTH-CENTRAL CLEAR CREEK COUNTY, COLORADO, 1954, pb, pages,3 figs., 1 table, $ 10 C 543 / Gott, G. B., et.al. / DISTRIBUTION OF GOLD, TELLURIUM, SILVER, AND MERCURY IN PART OF THE CRIPPLE CREEK DISTRICT, Colorado, 1967, 9 pages, 7 figs., 1 table, $ 15 C 567 / Sheridan, D. M., et.al. / RUTILE AND TOPAZ IN PRECAMBRIAN GNEISS, JEFFERSON AND CLEAR CREEK COUNTIES, Colorado, 1968, 7 pages, 3 tables, 4 figs., $ 10 C 675 / Mullens, M. C. / BIBLIOGRAPHY OF THE GEOLOGY OF THE GREEN RIVER FORMATION, COLORADO, UTAH, AND WYOMING, TO MARCH 1, 1973, 1973, pb, 20 pages, $ 4 C 704 / Neuerburg, G. J., et.al. / MOLYBDENITE IN THE MONTEZUMA DISTRICT OF CENTRAL COLORADO, 1974, 21 pages, 17 figs., 2 tables, $ 20 C 754 / Mullens, M. C. / BIBLIOGRAPHY OF THE GEOLOGY OF THE GREEN RIVER FORMATION, COLORADO, UTAH, AND WYOMING, TO MARCH 1, 1977, 1977, pb, 52 pages, $ 10 Colorado USGS Open File Reports: OFR 70 - unk / BOUGUER GRAVITY OF THE AREA WEST OF DENVER, COLORADO, $ 7 Colorado USGS Folios # 048 / TENMILE SPECIAL, COLORADO, 1898, $ 100 # 068 / WALSENBURG, COLORADO, 1900, $ 55 # 071 / SPANISH PEAKS, COLORADO 1901, $ 40 # 130 / RICO, COLORADO$ 100 # 131 / NEEDLE MOUNTAINS, COLORADO$ 80 # 153 / OURAY, COLORADO$ 125 # 171 / ENGINEER MOUNTAIN, COLORADO 1900, $ 85 # 186 / APISHAPA, COLORADO, $ 35 # 186 / APISHAPA, COLORADO, FIELD EDITION (folded), $ 25 # 198 / CASTLE ROCK, COLORADO 1915, $ 65 # 203 / COLORADO SPRINGS, COLORADO, 1919, $ 85 Colorado USGS MR Maps MR 57 REPORTED OCCURRENCES OF SELECTED MINERALS / COLORADO, $ 20 MR 58 LOCALITIES / AMOUNTS OF METALLIC MINERAL PRODUCTION IN COLORADO, $ 20 MR 70 FLUORSPAR DEPOSITS OF COLORADO, $ 15 Colorado USGS GP Maps GP 0125 / AIRBORNE RADIOACTIVITY SURVEY OF PART OF MOFFAT COUNTY, NORTH OF 40o45', COLORADO, $ 10 GP 0126 / AIRBORNE RADIOACTIVITY SURVEY OF PART OF MOFFAT COUNTY, SOUTH OF 40o45', COLORADO, $ 10 GP 0505 / NATURAL GAMMA AREOMAGNETIC MAP OF THE DENVER AREA, $ 10 GP 0557 / AEROMAGNETIC MAP OF THE DENVER AREA, COLORADO, $ 10 GP 0638 / GRAVITY OF THE TRINIDAD QUADRANGLE, COLORADO, $ 10 GP 0836 / AEROMAGNETIC MAP OF COLORADO, $ 10 GP 0840 / AEROMAGNETIC MAP OF THE RIDGWAY - PAGOSA SPRINGS AREA, SOUTHWESTERN COLORADO, $ 10 GP 0880 / AEROMAGNETIC MAP OF COLORADO, $ 10 GP 0895 / BOUGUER GRAVITY MAP OF COLORADO, $ 10 GP 0896 / BOUGUER GRAVITY AND GENERALIZED ELEVATION MAPS OF COLORADO, $ 10 Colorado USGS I Maps I 0165 / PHOTOGEOLOGIC MAP OF THE MOUNT PEALE-1 QUADRANGLE, COLORADO, $ 10 I 0174 / PHOTOGEOLOGIC MAP OF THE MOUNT PEALE - 8 QUADRANGLE, COLORADO, $ 10 I 0176 / PHOTOGEOLOGIC MAP OF THE MOUNT PEALE - 16 QUADRANGLE, COLORADO, $ 10 I 0274 / PHOTOGEOLOGIC MAP OF THE ESCALANTE FORK QUADRANGLE, MESA, MONTROSE, AND DELTA CO., COLORADO, $ 10 I 0277 / PHOTOGEOLOGIC MAP OF THE IRIS SE AND DOYLEVILLE SW QUADRANGLES, COLORADO, $ 10 I 0281 / PHOTOGEOLOGIC MAP OF THE YELLOW JACKET QUDRANGLE, COLORADO, $ 10 I 0282 / PHOTOGEOLOGIC MAP OF THE DELTA QUADRANGLE, MONTROSE AND DELTA CO., COLORADO, $ 10 I 0283 / PHOTOGEOLOGIC MAP, NORWOOD-1 QUADRANGLE, MONTROSE AND OURAY COUNTIES, COLORADO., $ 10 I 0309 / GEOLOGIC MAP OF THE IGNEOUS / METAMORPHIC ROCKS OF COLORADO SHOWING URANIUM DEPOSITS, COLORADO, $ 10 I 0333 / PRELIMINARY GEOLOGIC MAP OF THE INDIAN HILLS QUADRANGLE, JEFFERSON CO., COLORADO, $ 10 I 0360 / GEOLOGY, STRUCTURE, AND URANIUM DEPOSITS OF THE MOAB QUADRANGLE, UTAH AND COLORADO, $ 10 I 0383 / PRELIMINARY GEOLOGIC MAP OF THE ELDORADO SPRINGS QUADRANGLE, COLORADO, $ 10 I 0404 / GEOLOGIC MAP OF THE GRAND JUNCTION AREA. COLORADO, $ 10 I 0408 / GEOLOGY OF THE NORTHWEST AND NORTHEAST PUEBLO QUADRANGLES, COLORADO, $ 10 I 0428 / GEOLOGY OF THE SEDIMENTARY ROCKS OF THE MORRISON QUADRANGLE, COLORADO, $ 10 I 0439 / GEOLOGIC AND BIOSTRATIGRAPHIC MAP, THE PIERRE SHALE BETWEEN JARVE CREEK AND LOVELAND, COLORADO, $ 10 I 0443 / PRELIMINARY GEOLOGIC MAP OF THE BERTHOUD PASS QUADRANGLE, CLEAR CREEK AND GRAND CO., COLORADO, $ 10 I 0496 / DISTRIBUTION OF MINERALS IN THE CARIBOU STOCK, COLORADO, $ 10 I 0558 / GEOLOGIC MAP OF THE TRINIDAD QUADRANGLE, COLORADO, $ 10 I 0560 / GEOLOGIC AND STRUCTURAL CONTOUR MAP OF THE LA JUNTA QUADRANGLE, COLORADO, $ 10 I 0563 / GEOLOGIC MAP AND SECTIONS, SW QUARTER OF THE DILLON QUADRANGLE, COLORADO, $ 10 I 0584 / GEOLOGIC MAP OF THE BLACK CANYON OF THE GUNNISON RIVER AND VICINITY, WESTERN COLORADO, $ 10 I 0597 / GEOLOGIC MAP OF THE SOUTHWEST AND SOUTHEAST PUEBLO QUADRANGLES, COLORADO, $ 10 I 0608 / MAPS SHOWING DISTRIBUTION OF MINERALS, MONTEZUMA STOCK, COLORADO, $ 10 I 0629 / GEOLOGY, STRUCTURE AND URANIUM DEPOSITS OF THE CORTEZ QUADRANGLE, $ 10 I 0634 / MAPS SHOWING SOIL ANALYSIS FOR PROSPECTING THE MONTEZUMA STOCK, $ 10 I 0687 / GEOLOGIC MAP OF THE LOWER CACHE LA POUDRE RIVER BASIN, COLORADO, $ 10 I 0697 / RECONNAISSANCE GEOLOGIC MAP, CEDAREDGE AREA, COLORADO, $ 10 I 0698 / RECONNAISSANCE GEOLOGIC MAP, HOTCHKISS AREA,. COLORADO, $ 10 I 0731 / GENERALIZED SURFICIAL GEOLOGIC MAP, DENVER AREA, COLORADO, $ 10 I 0736 / GEOLOGIC AND STRUCTURE MAP OF THE GRAND JUNCTION QUADRANGLE, COLORADO, $ 10 I 0750 / MAP SHOWING GEOLOGIC AND STRUCTURAL CONTROL OF ORE DEPOSITS, MONTEZUMA DISTRICT, CENTRAL COLORADO, $ 10 I 0761 A / SURFICIAL / BEDROCK GEOLOGIC MAPS OF THE GOLDEN QUADRNAGLE, COLORADO, $ 10 I 0761 B / LANDSLIDES IN THE GOLDEN QUADRANGLE, COLORADO, $ 10 I 0761 C / POTENTIAL ROCKFALLS IN THE GOLDEN QUADRANGLE, COLORADO, $ 10 I 0761 D / EARTH MATERIALS THAT MAY COMPACT & CAUSE SETTLEMENT, GOLDEN QUADRANGLE, COLORADO, $ 10 I 0761 E / MAN-MADE LAND / DEPOSITS IN THE GOLDEN QUADRANGLE, COLORADO, $ 10 I 0764 / GEOLOGIC MAP OF THE DURANGO QUADRANGLE, COLORADO, $ 10 I 0770 A / GEOLOGIC MAP OF THE PARKER QUADRANGLE, COLORADO, $ 10 I 0770 B / FLOODING IN THE PARKER QUADRANGLE, COLORADO, $ 10 I 0770 D / SWELLING - PRESSURE POTENTAIL OF GEOLOGIC MATERIALS, PARKER QUADRANGLE, COLORADO, $ 10 I 0770 E / POTENTIAL LANDSLIDING, PARKER QUADRANGLE, COLORADO, $ 10 I 0770 F / SLOPE MAP OF THE PARKER QUADRANGLE, COLORADO, $ 10 I 0770 G / RELATIVE ERODIBILITY OF GEOLOGIC MATERIALS, PARKER QUADRANGLE, COLORADO, $ 10 I 0785 A / MAP SHOWING AREAS OF SELECTED POTENTIAL GEOLOGIC HAZARDS IN THE ASPEN QUADRANGLE, PITKIN COUNTY, COLORADO, $ 10 I 0785 B / MAP SHOWING THE GROUND-WATER POTENTIAL, ASPEN QUADRANGLE, COLORADO, $ 10 I 0785 C / MAP SHOWING RELATIVE BASE OF EXCAVATION IN THE ASPEN QUADRANGLE. COLORADO, $ 10 I 0785 D / MINES, PROSPECTS, AREAS OF SILVER, LEAD, ZINC; ASPEN QUADRANGLE, COLORADO, $ 10 I 0785 E / SLOPE MAP OF THE ASPEN QUADRANGLE, COLORADO, $ 10 I 0785 F / MAP SHOWING RELATIVE PERMEABILITY OF ROCKS AND SURFICIAL DEPOSITS, ASPEN AREA, COLORADO, $ 10 I 0785 G / MAP SHOWING AVALANCHE AREAS IN THE ASPEN QUADRANGLE, PITKIN COUNTY, COLORADO, $ 10 I 0785 H / MAP SHOWING TYPES OF BEDROCK AND SURFICIAL DEPOSITS IN THE ASPEN QUADRANGLE, COLORADO, $ 10 I 0786 A / GEOLOGIC MAP OF THE EVERGREEN QUADRANGLE, COLORADO, $ 10 I 0786 B / VEGETATION MAP OF THE EVERGREEN QUADRANGLE, JEFFERSON CO., COLORADO, $ 10 I 0786 C / SLOPE MAP OF THE EVERGREEN QUADRANGLE, JEFFERSON CO. COLORADO, $ 10 I 0786 D / MAP SHOWING APPROX. DENSITY OF HOUSES IN THE EVERGREEN QUAD.. $ 10 I 0786 F / MAP SHOWING FAULTS, JOINTS, FOLIATION AND SURFICIAL DEPOSITS IN THE EVERGREEN QUADRANGLE, COLORADO, $ 10 I 0786 G / MAP SHOWING THERMAL LINEAMENTS IN THE EVERGREEN QUADRANGLE, $ 10 I 0790 A / GEOLOGIC MAP OF THE MORRISON QUADRANGLE, COLORADO, $ 10 I 0790 B / MAP SHOWING LANDSLIDES AND AREAS SUSCEPTIBLE TO LANDSLIDING IN THE MORRISON QUADRANGLE, JEFFERSON COUNTY, COLORADO, $ 10 I 0790 C / MAP SHOWING AREAS CONTAINING SWELLING CLAY IN THE MORRISON QUADRANGLE, JEFFERSON CO., COLORADO, $ 10 I 0790 E / POINTS OF GEOLOGIC INTEREST IN THE MORRISON QUADRANGLE, COLORADO, $ 10 I 0790 G / RELATIVE PERMEABILITY OF GEOLOGIC MATERIALS, MORRISON QUADRANGLE, COLORADO, $ 10 I 0791 / MAPS SHOWING THE APPROXIMATE CONFIGUATION AND DEPTH TO THE TOP OF THE LARAMIE-FOX HILLS AQUIFER, DENVER BASIN, COLORADO, $ 10 I 0828 / GEOLOGIC MAP OF THE PLATORO CALDERA AREA, SAN JUAN MOUNTAINS, COLORADO, $ 10 I 0830 / GEOLOGIC MAP & SECTIONS OF THE HOLY CROSS QUADRANGLE, COLORADO, $ 10 I 0833 / GEOLOGIC MAP AND CROSS-SECTIONS, LA VETA PASS, COLORADO, $ 10 I 0855 A / LAKES IN THE BOULDER - FT. COLLINS - GREELEY AREA, COLORADO, $ 10 I 0855 C / MAP SHOWING AVAILABILITY OF HYDROLOGIC DATA, BOULDER - FT. COLLINS - GREELEY AREA, FRONT RANGE URBAN CORRIDOR, COLORADO, $ 10 I 0855 D / SOURCES OF GRAVEL & CRUSHED ROCK IN THE BOULDER - FT. COLLINS - GREELEY AREA, COLORADO, $ 10 I 0855 F / NATURAL AND HISTORIC LANDMARKS IN THE BOULDER - FT. COLLINS - GREELEY AREA, COLORADO, $ 10 I 0855 G / GEOLOGIC MAP OF THE BOULDER - FT. COLLINS - GREELEY AREA, COLORADO, $ 10 I 0855 H / LANDFORMS IN THE BOULDER - FT. COLLINS - GREELEY AREA, COLORADO, $ 10 I 0856 A / GRAVEL & CRUSHED ROCK IN THE GREATER DENVER AREA, COLORADO, $ 10 I 0856 F / MAP SHOWING NATURAL HISTORIC LANDMARKS, GREAT DENVER AREA, COLORADO, $ 10 I 0856 G / HISTORIC TRAIL MAP, DENVER AREA, COLORADO, $ 10 I 0856 H / GEOLOGIC MAP OF THE GREATER DENVER AREA, COLORADO, $ 10 I 0857 A / GRAVEL & CRUSHED ROCK SOURCES IN THE COLORADO SPRINGS - CASTLE ROCK AREA, COLORADO, $ 10 I 0857B / LAND-USE CLASSIFICATION MAP OF THE COLORADO SPRINGS - CASTLE ROCK AREA, FRONT RANGE URBAN CORRIDOR, COLORADO, $ 10 I 0857 F / GEOLOGIC MAP OF THE COLORADO SPRINGS - CASTLE ROCK AREA, COLORADO, $ 10 I 0869 / RECONNAISSANCE GEOLOGIC MAP OF THE ROYAL GORGE QUADRANGLE, COLORADO, $ 10 I 0870 / RECONNAISSANCE GEOLOGIC MAP, DEER PEAK QUAD. & PART OF HARDSCRABBLE MOUNTAIN QUAD., COLORADO, $ 10 I 0892 / RECONNAISSANCE GEOLOGIC MAP OF THE HOWARD QUADRANGLE, COLORADO, $ 10 I 0900 / RECONNAISSANCE GEOLOGIC MAP OF THE COTOPAXI 15-MINUTE QUADRANGLE, FREMONT AND CUSTER COUNTIES, COLORADO, $ 10 I 0901 / GEOLOGIC MAP, LOWER CONEJOS RIVER CANYON, SE SAN JUAN MOUNTAINS, COLORADO, $ 10 I 0930 / HISTORIC TRAIL MAPS OF THE PUEBLO 1 X 2 QUADRANGLE, COLORADO, $ 10 I 0937 / GEOLOGIC, BIOSTRATIGRAPHIC MAP, PIERRE SHALE, CANON CITY-FLORENCE BASIN, COLORADO, $ 10 I 0944 / GEOLOGIC MAP OF THE LAMAR QUADRANGLE, $ 10 I 0952 / GEOLOGIC MAP, DEL NORTE AREA, COLORADO, $ 10 I 0962 / GEOLOGIC MAP, LAKE CITY CALDERA, COLORADO, $ 50 I 0964 / PRELIMINARY MAP OF LANDSLIDE DEPOSITS IN COLORADO, $ 10 I 0965 / NONMETALLIC MINERAL RESOURCES (EXCEPT FUELS) IN BEDROCK, FRONT RANGE CORRIDOR, COLORADO, $ 10 I 0966 / GEOLOGIC MAP, SOUTH FORK AREA, COLORADO, $ 10 I 0972 / GEOLOGIC MAP, CRAIG 1 X 2 QUADRANGLE, COLORADO, $ 10 I 0973 / MAP SHOWING TYPES OF BEDROCK AND SURFICIAL DEPOSITS IN THE TELLURIDE QUADRANGLE, COLORADO, $ 10 I 0980 / ENGINEERING GEOLOGY MAP OF THE INDIAN HILLS QUADRANGLE, COLORADO, $ 10 I 0999 / GEOLOGIC MAP OF THE LEADVILLE 1 X 2 QUADRANGLE, NORTHWESTERN COLORADO, $ 10 I 1022 / GEOLOGIC MAP, PUEBLO 1 X 2 QUADRANGLE, COLORADO, $ 10 I 1039 / ENERGY RESOURCES OF COLORADO, $ 10 I 1043 / HYDROLOGY OF THE ARAPAHO AQUIFER, ENGLEWOOD - CASTLE ROCKS AREA, $ 10 I 1044 / GEOLOGIC MAP OF THE FLORISSANT 15 MINUTE QUADRANGLE, COLORADO, $ 10 I 1081 / GEOLOGIC MAP, SILVER CLIFF AND ROSITA VOLCANIC CENTERS, COLORADO, $ 10 I 1091 B / MAP SHOWING DISTRIBUTION, COMPOSITION, AND AGE OF LATE CENOZOIC VOLCANIC CENTERS IN COLORADO, UTAH, AND SW WYOMING, $ 10 I 1092 / GEOLOGY, STRUCTURE, OIL AND GAS FIELDS IN THE STERLING 1 X 2 QUADRANGLE, COLORADO, $ 10 I 1108 / LEASABLE MINERAL AND WATER POWER LAND CLASSIFICATION MAP OF THE LEADVILLE 1 X 2 QUADRANGLE, $10 I 1112 / GEOLOGIC MAP, CENTRAL PART OF THE NORTHERN PARK RANGE, COLORADO, $ 10 I 1113 / GEOLOGIC MAP, NORTHERNMOST PARK RANGE AND SOUTHERN MOST SIERRA MADRE, COLORADO, $ 10 I 1114 / GEOLOGIC MAP, NORTHERNMOST GORE RANGE & SOUTHERNMOST NORTHERN PARK RANGE, $ 10 I 1163 / GEOLOGIC MAP, DENVER 1 X 2 QUADRANGLE, COLORADO, $ 10 I 1179 / GEOLOGIC MAP OF THE COVER MOUNTAIN QUADRANGLE, COLORADO, $ 10 I 1180 / GEOLOGIC MAP OF THE GUFFEY QUADRANGLE, PARK COUNTY, COLORADO, $ 10 I 1195 / GEOLOGIC MAP OF THE BLACK MOUNTAIN QUADRANGLE, COLORADO, $ 10 I 1204 / SURFICIAL GEOLOGIC MAP OF THE VERNAL 1 X 2 QUADRANGLE, COLORADO AND UTAH, $ 10 I 1247 / GEOLOGIC MAP OF THE UNCOMPAHGRE (OURAY) MINING DISTRICT, COLORADO, $ 10 I 1250 / GEOLOGIC MAP OF LIMON 1 X 2 QUADRANGLE, COLORADO, $ 10 I 1289 / SURFICIAL GEOLOGIC MAP OF THE GRAND JUNCTION 1 X 2 QUADRANGLE, COLORADO, $ 10 I 1291 / GEOLOGIC MAP OF THE MOUNT RICHTHOFEN QUADRANGLE, COLORADO, $ 10 I 1316 / MAP SHOWING SNOW AVALANCHE AREA AND KNOWN ACCIDENT SITES IN THE TELLURIDE REGION, COLORADO, $ 10 I 1346 / SURFICIAL GEOLOGIC MAP OF THE CRAIG 1 X 2 QUADRANGLE, COLORADO, $ 10 I 1378 / PALEOVALLEY & GEOLOGIC MAP OF NORTHWESTERN COLORADO, COLORADO, $ 10 I 1416 / GEOLOGIC SECTIONS ACROSS COLORADO, $ 10 I 1419 A / BOUGUER GRAVITY MAP OF THE PUEBLO 1 X 2 QUADRANGLE, $ 10 I 1419 D / TRACE ELEMENT GEOCHEMICAL MAP, WESTERN 3/4 OF THE PUEBLO QUADRANGLE, $ 10 I 1425 / GEOLOGIC & STRUCTURAL MAPS & SECTIONS, MARSHALL PASS MINING DISTRICT, $ 10 I 1526 / GEOLOGIC MAP OF THE VERNAL 1 X 2 QUADRANGLE, COLORADO AND UTAH, $ 10 I 1532 / GEOLOGIC MAP OF THE CITADEL PLATEAU QUADRANGLE, COLORADO, $ 10 I 1539 / PETROLEUM POTENTIAL OF WILDERNESS LANDS, COLORADO, $ 10 I 1566 / MAP SHOWING TECTONIC FEATURES OF LATE CENOZOIC ORIGIN IN COLORADO, $ 10 I 1594 / MAP SHOWING UPPER CENOZOIC ROCKS & DEPOSITS AND QUATERNARY FAULTS, RIO GRANDE RIFT, COLORADO, $ 10 I 1626 / LATE EROSIN SURFACE, OLIOGCENE-MIOCENE PALEOVALLEYS, TERTIARY DEPOSITS, PUEBLO - DENVER - GREELEY 1 X 2, COLORADO, $ 10 I 1627 / GEOLOGIC AND BIOSTRATIGRAPHIC MAP OF THE PIERRE SHALE, COLORADO SPRINGS - PUEBLO AREA, COLORADO, $ 10 I 1823 / SURFICIAL GEOLOGIC MAP OF THE MEEKER 30 X 60 QUADRANGLE, COLORADO, $ 10 I 1824 / SURFICIAL GEOLOGIC MAP OF THE WALDEN 30 X 60 QUADRANGLE, COLORADO, $ 10 I 1825 / SURFICIAL GEOLOGICI MAP OF THE STEAMBOAT SPRINGS 30 X 60 QUADRANGLE, COLORADO, $ 10 I 1939 / GEOLOGIC MAP OF THE MONTROSE 30 X 60 QUADRANGLE, COLORADO, $ 10 I 1971 / METALLOGENIC MAP OF STRATABOUND EXHALATIVE AND RELATED OCCURRENCES IN COLORADO, $ 10 I 2286 / GEOLOGIC & ALTERATION MAP AND DRILL-CORE LOGS OF THE RED MOUNTAIN AREA NEAR LAKE CITY, COLORADO, $ 10 I 2291 B / MAP SHOWING DISTRIBUTION, COMPOSITION, AND AGE OF EARLY AND MIDDLE CENOZOIC CENTERS IN COLORADO AND UTAH, $10 I 2452 / GEOLOGIC MAP OF PRECAMBRIAN ROCKS OF THE SIERRA MADRE, COLORADO, $ 10 I 2504 / NEOGENE GEOMORPHIC EVOLUTION OF THE CENTRAL SAN JUAN MOUNTAINS NEAR CREEDE, COLORADO, $ 10 I 2639 / HISTORIC TRAIL MAP OF THE DENVER 1 X 2 QUADRANGLE, COLORADO, $ 10 I 2681 / GEOLOGIC MAP OF THE SILVERTON AND HOWARDSVILLE QUADRANGLES, COLORADO, $ 10 I 2735 / MAPS SHOWING THE EXTENT OF MINING, LOCATIONS OF MINE SHAFTS, ADITS, AIR SHAFTS, AND BEDROCK FAULTS, AND THICKNESS OF OVERBURDEN ABOVE ABANDONED COAL MINES IN THE BOULDER-WELD COAL FIELD, BOULDER, WELD, AND ADAMS COUNTIES, COLORADO, $ 12 I 2820 / HISTORIC TRAIL MAP OF THE LEADVILLE 1 X 2 QUAD., CENTRAL COLORADO, $ 10 Colorado USGS MF Maps MF 0012 / GEOLOGIC MAP OF THE PANDO AREA, COLORADO, $ 10 MF 0017 / PRELIMINARY GEOLOGIC MAP OF THE RED CANYON QUADRANGLE, COLORADO, $ 10 MF 0018 / PRELIMINARY GEOLOGIC MAP OF THE ATKINSON CREEK QUADRANGLE, COLORADO, $ 10 MF 0023 / PRELIMINARY GEOLOGIC MAP OF THE ROC CREEK QUADRANGLE, COLORADO, $ 10 MF 0028 / PRELIMINARY GEOLOGIC MAP OF THE JUANITA ARCH QUADRANGLE, COLORADO, $ 10 MF 0032 / PRELIMINARY GEOLOGIC MAP OF THE CLAMITY MESA QUADRANGLE, COLORADO, $ 10 MF 0034 / GEOLOGY OF THE TENNESSEE PASS AREA, COLORADO, $ 15 MF 0037 / GEOLOGIC AND RADIOMETRIC MAPS OF THE MCKINLEY MOUNTAIN AREA, WET MOUNTAINS, COLORADO, $ 10 MF 0096 / PRELIMINARY GEOLOGIC MAP OF THE PLACERVILLE QUADRANGLE, $ 10 MF 0122 / PRELIMINARY GEOLOGIC MAP, SECTIONS OF THE WESTERN PART OF THE GATEWAY DISTRICT, COLORADO, $ 10 MF 0123 / PRELIM. GEOLOGIC MAP OF THE MOUNT PEALE 1 SE QUAD., MONTROSE CO., CO, $ 10 MF 0130 / PRELIMINARY TECTONIC MAP OF NORTHERN COLORADO AND NORTHEASTERN UTAH SHOWING DISTRIBUTION OF URANIUM DEPOSITS, COLORADO, $ 10 MF 0149 / PRELIMINARY GEOLOGIC MAP, MOUNT PEALE 4 SE QUADRANGLE, COLORADO, $ 10 MF 0150 / PRELIMINARY GEOLOGIC MAP AND SECTIONS, MOUNT PEALE 4 NE QUADRANGLE, COLORADO, $ 10 MF 0169 / EXPLORATION FOR URANIUM-VANADIUM DEPOSITS, CLUB MESA AREA, URAVAN DISTRICT, COLORADO, $ 10 MF 0176 / PRELIMINARY GEOLOGIC MAP OF THE GRAY HEAD QUADRANGLE, COLORADO, $ 10 MF 0179 / PRELIMINARY GEOLOGIC MAP OF THE BEDROCK GEOLOGY OF RALSTON BUTTES, COLORADO, $ 10 MF 0203 / PRELIMINARY GEOLOGIC MAP OF THE SLICK ROCK DISTRICT, COLORADO, $ 10 MF 0216 / PRELIMINARY GEOLOGIC MAP OF THE MOQUI SW QUADRANGLE, COLORADO, $ 10 MF 0217 / PRELIMINARY GEOLOGIC MAP OF THE CORTEZ SW QUADRANGLE, COLORADO, $ 10 MF 0221 / PRELIMINARY GEOLOGIC MAP OF THE MAQUI SE QUADRANGLE, COLORADO, $ 10 MF 0223 / PRELIMINARY GEOLOGIC MAP OF THE LITTLE CONE QUADRANGLE, COLORADO, $ 10 MF 0224 / PRELIMINARY GEOLOGIC MAP OF THE SENTINEL PEAK NE QUADRANGLE, COLORADO, $ 10 MF 0241 / EXPLORATION FOR URANIUM-VANADIUM DEPOSITS BY THE USGS, 1949-56, WESTERN DISAPPOINTMENT VALLEY, COLORADO, $ 10 MF 0271 / PRELIMINARY GEOLOGIC MAP OF THE HOT SULPHUR SPRINGS SE QUADRANGLE, COLORADO, $ 10 MF 0273 / PRELIMINARY GEOLOGIC MAP OF THE MOUNT WILSON QUADRANGLE, SAN MIGUEL COUNTY, COLORADO, $ 10 MF 0628 / RECONNAISSANCE GEOL. MAP OF THE ELECTRIC PEAK QUADRANGLE, COLORADO, $ 10 MF 0291 / PRELIMINARY GEOLOGIC MAP OF THE HOT SULPHUR SPRINGS SW QUADRANGLE, COLORADO, $ 10 MF 0308 / PRELIMINARY ENGINEERING GEOLOGIC MAP OF THE GOLDEN QUADRANGLE, COLORADO, $ 10 MF 0309 / STRUCTURE CONTOURS / OVERBURDEN, MAHOGANY ZONE, GREEN RIVER FORMATION, NORTH PICEANCE CREEK BASIN, COLORADO, $ 10 MF 0347 / PRELIMINARY GEOLOGIC MAP OF THE BARCUS CREEK SE QUADRANGLE, COLORADO, $ 10 MF 0348 / GEOLOGIC MAP OF THE ARVADA QUADRANGLE, COLORADO, $ 10 MF 0352 / RECONNAISSANCE GEOLOGIC MAP OF THE BEULAH NE QUADRANGLE, COLORADO, $ 10 MF 0353 / RECONNAISSANCE GEOLOGIC MAP OF THE HOBSON QUADRANGLE, COLORADO, $ 10 MF 0354 / RECONNAISSANCE GEOLOGIC MAP OF THE SWALLOWS QUADRANGLE, COLORADO, $ 10 MF 0482 / RECONNAISSANCE GEOLOGIC MAP OF THE COLORADO SPRINGS QUADRANGE, COLORADO, $ 10 MF 0513 / MAP SHOWING MINED AREAS, BOULDER - WELD COALFIELDS, COLORADO, $ 10 MF 0547 / RECONNAISSANCE GEOLOGIC MAP OF THE OWL CANYON QUADRANGLE, COLORADO, $ 10 MF 0548 / RECONNAISSANCE GEOLOGIC MAP OF THE WETMORE QUADRANGLE, COLORADO, $ 10 MF 0551 / RECONNAISSANCE GEOLOGIC MAP OF THE BEULAH QUADRANGLE, COLORADO, $ 10 MF 0555 / RECONNAISSANCE GEOLOGIC MAP, FAIRPLAY WEST, MOUNT SHERMAN, SOUTH PEAK AND JONES HILL 7.5 MINUTE QUADRANGLES, COLORADO, $ 10 MF 0556 / GEOLOGIC MAP OF THE MOUNT LINCOLN 15' QUADRANGLE, COLORADO, $ 10 MF 0562 / RECONNAISSANCE GEOLOGIC MAP OF THE ROCKVALE QUADRANGLE, COLORADO, $ 10 MF 0570 / PRELIMINARY GEOLOGIC MAP OF THE SEGAR MOUNTAIN QUADRANGLE, COLORADO, $ 10 MF 0597 / RECONNAISSANCE GEOLOGIC MAP OF THE CONIFER QUADRANGLE, COLORADO, $ 10 MF 0598 / RECONNAISSANCE GEOLOGIC MAP OF THE PINE QUADRANGLE, COLORADO, $ 10 MF 0619 / PRELIMINARY GEOLOGIC MAP AND SECTION OF THE BARCUS CREEK QUADRANGLE, COLORADO, $ 10 MF 0631 / GEOLOGIC MAP AND ENGINEERING DATA, HIGHLANDS RANCH QUADRANGLE, COLORADO, $ 10 MF 0651 / GEOLOGIC MAP OF THE BUCKSKIN POINT QUADRANGLE, COLORADO, $ 10 MF 0656 / GEOLOGIC MAP OF THE LAFAYETTE QUADRANGLE, COLORADO, $ 10 MF 0657 / RECONNAISSANCE GEOLOGIC MAP OF THE BUENA VISTA QUADRANGLE, COLORADO, $ 10 MF 0658 / GEOLOGIC MAP OF THE PONCHA SPRINGS QUADRANGLE, COLORADO, $ 10 MF 0666 / PRELIMINARY GEOLOGIC MAP OF THE CRAIG 1 X 2 QUADRANGLE, COLORADO, $ 10 MF 0682 / RECONNAISSANCE GEOLOGIC MAP OF THE CHAMA PEAK QUADRANGLE, COLORADO, $ 10 MF 0688 / PRELIMINARY GEOLOGIC MAP, OIL SHALE YIELD HISTOGRAMS, LONG POINT QUADRANGLE, COLORADO, $ 10 MF 0689 / RECONNAISSANCE MAP SHOWING RELATIVE AMOUNTS OF SOIL AND BEDROCK IN MOUNTAINOUS PART OF RALSTON BUTTES QUAD., $ 10 MF 0691 / PRELIMINARY GEOLOGIC MAP OF THE CUTOFF GULCH QUADRANGLE, COLORADO, $ 10 MF 0695 / RECONNAISSANCE MAP OF THE SOIL AND BEDROCK OF THE EL DORADO SPRINGS QUADRANGLE, COLORADO, $ 10 MF 0697 / PRELIMINARY MAP OF LANDSLIDE DEPOSITS, GRAND JUNCTION 1 X 2 QUADRANGLE, COLORADO, $ 10 MF 0698 / PRELIMINARY MAP OF LANDSLIDE DEPOSITS, MOAB 1 X 2 QUADRANGLE, COLORADO AND UTAH, $ 10 MF 0699 / PRELIMINARY MAP OF LANDSLIDE DEPOSITS, COLORADO AND UTAH, $ 10 MF 0701 / PRELIMINARY MAP OF LANDSLIDE DEPOSITS OF THE LEADVILLE 1 X 2 QUADRANGLE, COLORADO, $ 10 MF 0713 / GEOLOGIC MAP OF THE SPRING HILL CREEK QUADRANGLE, COLORADO, $ 10 MF 0733 / GEOLOGIC MAP, SAWTOOTH MOUNTAIN QUADRANGLE, COLORADO, $ 10 MF 0736 / PRELIMINARY GEOLOGIC MAP AND CORRELATION DIAGRAM OF THE WHITE RIVER CITY QUADRANGLE, COLORADO, $ 10 MF 0740 / RECONNAISSANCE MAP SHOWING RELATIVE AMOUNTS OF SOIL AND BEDROCK IN THE MOUNTAINS PART OF THE MORRISON-EVERGREEN QUADRANLGES, COLORADO, $ 10 MF 0746 / STRUCTURE. CONTOURS AND OVERBURDEN ON THE MAHOGENY ZONE, GREEN RIVER FORMATION, SOUTH PICEANCE CREEK BASIN, COLORADO, $ 10 MF 0748 / GEOLOGIC MAP, RAZOR CREEK DOME QUADRANGLE, COLORADO, $ 10 MF 0753 / PRELIMINARY GEOLOGIC MAP, WOLF RIDGE QUADRANGLE, COLORADO, $ 10 MF 0754 / PRELIMINARY GEOLOGIC MAP, SQUARE AND RANCH QUADRANGLES, COLORADO, $ 10 MF 0755 / PRELIMINARY GEOLOGIC MAP, GREASEWOOD GULCH QUADRANGLE, COLORADO, $ 10 MF 0756 / PRELIMINARY GEOLOGIC MAP, JESSUP GULCH QUADRANGLE, COLORADO, $ 10 MF 0757 / PRELIMINARY GEOLOGIC MAP, ROCK SCHOOL QUADRANGLE, COLORADO, $ 10 MF 0758 / PRELIMINARY GEOLOGIC MAP, YANKEE GULCH QUADRANGLE, COLORADO, $ 10 MF 0759 / RECONNAISSANCE GEOLOGIC MAP OF THE GLENTIVAR QUADRANGLE, COLORADO, $ 10 MF 0760 / PRELIMINARY GEOLOGIC MAP OF THE LEADVILLE 1 X 2 QUADRANGLE, COLORADO, $ 10 MF 0761 / PRELIMINARY GEOLOGICAL MAP, MONTROSE 1 X 2 QUADRANGLE, COLORADO, $ 10 MF 0770 / SOIL AND BEDROCK IN THE CONIFER QUADRANGLE AND ADJOINING, COLORADO, $ 10 MF 0775 / GEOLOGIC MAP OF THE PUEBLO 1 X 2 QUADRANGLE, COLORADO, $ 10 MF 0780 / GEOLOGIC MAP & DETAILS OF THE BERYLLIUM AND MOLYBDENUM OCCURRENCES, MOUNT ANTERO, COLORADO, $ 45 MF 0787 / RECONNAISSANCE MAP OF SOIL & BEDROCK IN THE MOUNTAINOUS PART OF KASSLER QUADRANGLE, COLORADO, $ 10 MF 0788 / PRELIMINARY GEOLOGIC MAP OF COLORADO, $ 10 MF 0803 / RECONNAISSANCE MAP, SOIL AND BEDROCK, PLATTE CANYON QUADRANGLE, COLORADO, $ 10 MF 0804 / RECONNAISSANCE MAP, PINE QUAD. & ADJOINING, JEFFERSON CO., COLORADO, $ 10 MF 0805 / RECONNAISSANCE GEOLOGIC MAP, CRIPPLE CREEK-PIKES PEAK AREA, TELLER, FREMONT, AND EL PASO CO., $ 10 MF 0810 / GEOLOGIC MAP AND DETAILS OF THE BERYLLIUM AND MOLYBDENUM OCCURRENCES, MOUNT ANTERO, COLORADO, $ 40 MF 0816 / GEOLOGICAL MAP OF THE BAILEY QUADRANGLE, COLORADO, $ 10 MF 0828 / GEOLOGICAL MAP OF THE PLATORO CALDERA AREA, COLORADO, $ 10 MF 0829 / PRELIMINARY GEOLOGIC MAP OF THE SADDLE QUADRANGLE, COLORADO, $ 10 MF 0830 / PRELIMINARY GEOLOGIC MAP OF THE BULL FORK QUADRANGLE, COLORADO, $ 10 MF 0831 / PRELIMINARY GEOLOGIC MAP OF THE FORT LOGAN QUADRANGLE, COLORADO, $ 10 MF 0836 / GEOLOGIC MAP OF THE INDIAN VALLEY QUADRANGLE, COLORADO, $ 10 MF 0837 / GEOLOGIC MAP OF THE WHITE ROCK QUADRANGLE, COLORADO, $ 10 MF 0842 / RECONNAISSANCE GEOLOGICAL MAP OF THE WOODLAND PARK QUAD., COLORADO, $ 10 MF 0860 / GEOLOGIC MAP OF THE MCCARTHY GULCH QUADRANGLE, COLORADO, $ 10 MF 0882 / PRELIMINARY GEOLOGY, ERIE QUAD., BOULDER, WELD, AND ADAMS CO., COLORADO, $ 10 MF 0892 / RECONNAISSANCE MAP OF THE CANON CITY QUAD., FREMONT CO., COLORADO, $ 10 MF 0912 / GEOLOGICAL MAP OF THE FIGURE FOUR SPRING QUADRANGLE, RIO BLANCO AND GARFIELD COUNTIES, COLORADO, $8 MF 0958 / ISOPACH, STRUCTURE CONTOUR, AND RESOURCE MAPS OF THE MAHOGANY OIL-SHALE ZONE, GREEN RIVER FORMATION, PICEANCE CREEK BASIN, $ 10 MF 0984 / PRELIMINARY GEOLOGIC MAP OF THE MOUNT BLAINE QUADRANGLE, GARFIELD CO., COLORADO, $ 10 MF 0996 / RECONNAISSANCE MAP SHOWING SOIL AND BEDROCK, BUCKHORN MOUNTAIN QUADRANGLE, COLORADO, $ 10 MF 0996 / RECONNAISSANCE MAP SHOWING SOIL & BEDROCK, MOUNTAINOUS PART OF HORSETOOTH RESERVOIR, COLORADO, $ 10 MF 1013 / GEOLOGIC MAP OF THE WALSH KNOLLS QUADRANGLE, COLORADO, $ 10 MF 1067 / PRELIMINARY GEOLOGICAL MAP, COMMERCE CITY QUAD., ADAMS & DENVER CO., COLORADO, $ 10 MF 1130 B / CROSS SECTION B-B’ OF THE UPPER CRETACEOUS AND LOWER TERTIARY ROCKS, SOUTHERN PICEANCE CREEK BASIN, COLORADO, $ 10 MF 1130 C / CROSS SECTION C-C’ OF UPPER CRETACEOUS AND LOWER TERTIARY ROCKS, SOUTHERN PICEANCE CREEK BASIN, COLORADO, $ 10 MF 1163 / GEOLOGIC MAP OF THE VERNAL 1 X 2 QUADRANGLE, COLORADO, UTAH AND WYOMING, $ 10 MF 1179 / GEOLOGIC MAP AND COAL STRUCTURES OF THE CACTUS RESERVOIR QUADRANGLE, RIO BLANCO AND MOFFET COUNTIES, COLORADO, $ 10 MF 1180 / GEOLOGIC MAP, SABLE QUADRANGLE, ADAMS & DENVER CO., COLORADO, $ 10 MF 1182 / PRELIMINARY GEOLOGIC MAP OF THE WAGON TRACK RIDGE QUADRANGLE, GARFIELD & MESA COUNTIES, COLORADO, $ 10 MF 1189 / STRUCTURE CONTOUR & ISOCHORE MAP OF THE NONMARINE PART OF THE MESAVERDE FORMATION GROUP, COLORADO, $ 10 MF 1215 / PRELIMINARY GEOLOGIC MAP OF THE MIDDLE DRY FORK QUADRANGLE, GARFIELD CO., COLORADO, $ 10 MF 1221 / LINEAMENTS AND GEOLOGIC STRUCTURE OF THE NORTHERN PARADOX BASIN, COLORADO AND UTAH, $ 10 MF 1236 A / GEOLOGIC MAP OF THE HUNTER-FRYINGPAN WILDERNESS AREA AND THE MOUNTAIN WILDERNESS STUDY AREA, $ 10 MF 1236 B / GEOCHEMICAL MAP, HUNTER-FRYING PAN WILDERNESS AREA & THE PORPHYRY MOUNTAIN WILDERNESS STUDY AREA, COLORADO, $ 10 MF 1236 C / AEROMAGNETIC AND COMPLETE BOUGUER GRAVITY ANOMALY MAPS OF THE HUNTER-FRYINGPAN WILDERNESS AREA, PITKIN COUNTY, $ 10 MF 1293 / PRELIM. GEOL. MAP, CIRCLE DOT GULCH QUAD., GRAND JUNCTION AREA, CO, $ 5 MF 1328 / PRELIMINARY GEOLOGIC MAP, DESERT GULCH QUADRANGLE, COLORADO, $ 10 MF 1449 / INTERPRETATION OF AERIAL RADIOMETRIC DATA FOR THE LAKE CITY CALDERA AND VICINITY, COLORADO, $ 10 MF 1483 A / MINERAL RESOURCE POTENTIAL AND GEOLOGIC MAP OF THE POWDERHORN WILDERNESS STUDY AREA AND CANNIBAL PLATEAU ROADLESS AREA, GUNNISON AND HINSDALE COUNTIES, CO, $ $ 1 MF 1483 B / AEROMAGNETIC MAP OF THE POWDERHORN WILDERNESS STUDY AREA AND CANNIBAL PLATEAU ROADLESS AREA, COLORADO, $ 10 MF 1483 C / GEOCHEMICAL MAP OF THE POWDERHORN WILDERNESS STUDY AREA AND CANNIBAL PLATEAU ROADLESS AREA, COLORADO, $ 10 MF 1524 A / RECONNAISSANCE GEOLOGIC MAP, SPANISH PEAKS WILDERNESS STUDY AREA, COLORADO, $ 10 MF 1542 C / MINERAL RESOURCE POTENTIAL MAP OF THE SPANISH PEAKS WILDERNESS STUDY AREA, HUERFANO AND LAS ANIMAS COUNTIES, COLORADO, $ 10 MF 1571 / MINERAL RESOURCE POTENTIAL MAP & GEOLOGIC MAP OF THE WHEELER WILDERNESS STUDY AREA, COLORADO, $ 10 MF 1582 A / GEOLOGY AND MINERAL RESOURCE POTENTIAL, OH-BE-JOYFUL WILDERNESS STUDY AREA, $ 10 MF 1588 A / MINERAL RESOURCE POTENTIAL MAP OF THE VASQUEZ PEAK WILDERNESS STUDY AREA & THE WILLIAMS FORK AND ST. LOUIS PEAK ROADLESS AREAS, COLORADO, $ 10 MF 1588 D / GEOPHYSICAL MAPS OF THE VASQUEZ PEAK WILDERNESS STUDY AREA AND THE WILLIAMS FORK AND ST. LOUIS PEAK ROADLESS AREAS; CLEAR CREEK, GRAND AND SUMMIT CO. COLORADO, $ 10 MF 1588 G / GEOCHEMICAL MAPS SHOWING DISTRIBUTION / ABUNDANCE OF ELEMENTS IN HEAVY-MINERAL CONCENTRATES, VASQUEZ PEAK WILDERNESS, COLORADO, $ 10 MF 1622 A / PRINCIPAL REFERENCE SECTION FOR THE SANGRE DE CRISTO FORMATION, COLORADO $ 10 MF 1622 B / MEASURED SECTIONS AND DISCUSSION OF THE MAIN TURBIDITE MEMBER, PENNSYLVANIAN MINTURN FORMATION, COLORADO, $ 10 MF 1622 C / REFERENCE SECTION FOR THE MINTURN FORMATION, COLORADO, $ 10 MF 1628 C / GEOLOGIC MAP OF THE BUFFALO PEAKS WILDERNESS STUDY AREA; LAKE, PARK, AND CHAFEE COUNTIES, CO., $ 10 MF 1629 A / MINERAL RESOURCES POTENTIAL MAP OF THE FOSSIL RIDGE WILDERNESS STUDY AREA, GUNNISON COUNTY, COLORADO, $ 10 MF 1630 A / MINERAL RESOURCE POTENTIAL, PIEDRA WILDERNESS STUDY AREA, COLORADO, $ 10 MF 1630 B / GEOLOGIC MAP OF THE PIEDRA WILDERNESS STUDY AREA, COLORADO, $ 10 MF 1632 A / MINERAL RESOURCE POTENTIAL MAP, WEST NEEDLES WILDERNESS, COLORADO, $ 10 MF 1632 B / GEOLOGIC & GEOCHEMICAL MAPS OF THE WEST NEEDLE WILDERNESS, COLORADO, $ 10 MF 1635 A / MINERAL RESOURCES POTENTIAL MAP OF THE SANGRE DE CRISTO WILDERNESS STUDY AREA, SOUTH-CENTRAL COLORADO, $ 10 MF 1635 B / RECONNAISSANCE GEOLOGICAL MAP OF THE SANGRE DE CRISTO WILDERNESS STUDY AREA, SOUTH-CENTRAL COLORADO, $ 10 MF 1639 / GEOLOGY AND MINERAL RESOURCE POTENTIAL MAP OF THE SERVICE CREEK ROADLESS AREA, ROUTT COUNTY, COLORADO, $ 10 MF 1647 A / MINERAL RESOURCE POTENTIAL MAPS OF THE MAROON BELLS-SNOWMASS WILDERNESS & ADDITIONS, PITKIN AND GUNNISON CO., $ 10 MF 1647 B / GRAVITY AND AEROMAGNETIC MAPS OF THE MAROON BELLS-SNOWMASS WILD. & ADDITIONS, GUNNISON AND PITKIN CO., $ 10 MF 1667 / STRUCTURE CONTOUR MAP OF THE TOP OF THE ROLLINS SANDSTONE MEMBER OF THE MESA VERDE FORMATION AND TROUT CREEK SANDSTONE MEMBER OF THE ILES FORMATION, PICEANCE CREEK, COLORADO, $ 10 MF 1690 / PRELIMINARY GEOLOGIC MAP, CALAMITY RIDGE QUADRANGLE, COLORADO, $ 10 MF 1694 / SEISMICITY MAP OF THE STATE OF COLORADO, COLORADO, $ 10 MF 1698 / PRELIMINARY GEOLOGIC MAP, MESA QUADRANGLE, COLORADO, $ 10 MF 1738 / MAP SHOWING GRAVEL-BEARING SURFICIAL DEPOSITS AND BASALTIC ROCKS NEAR TRINIDAD, COLORADO, $ 10 MF 1762 / RECONNAISSANCE GEOLOGIC MAP OF THE COOPER MOUNTAIN QUADRANGLE, FREMONT CO., COLORADO, $ 1 MF 1764 / RECONNAISSANCE GEOLOGIC MAP, PHANTOM CANYON QUADRANGLE, COLORADO, $ 10 MF 1784 / RECONNAISSANCE GEOLOGIC MAP, MOLINA QUADRANGLE, COLORADO, $ 10 MF 1786 / GEOLOGIC MAP, ELECTRIC PEAK & SOUTHWEST PART OF BECKWITH MOUNTAIN QUADRANGLE, CUSTER AND SAGUACHE COUNTIES, COLORADO, $ 10 MF 1792 / GEOLOGIC MAP OF THE MOUNT MASSIVE WILDERNESS, LAKE COUNTY, CO., $ 10 MF 1813 / PRELIMINARY GEOLOGIC MAP, BAXTER PASS QUADRANT, COLORADO, $ 10 MF 1816 / PRELIMINARY GEOLOGIC MAP, RIO BLANCO QUADRANT, COLORADO, $ 10 MF 1820 / RECONNAISSANCE GEOLOGIC MAP, MOUNT AJO AND PART OF THE PISINIMO QUADRANGLE, COLORADO, $ 10 MF 1841 A / GEOLOGIC MAP OF THE HOLY CROSS WILDERNESS, COLORADO, $ 10 MF 1868 / MAP SHOWING LIMONITIC HYDROTHERMAL ALTERATION IN THE LAKE CITY CALDERA AREA, WESTERN SAN JUAN MOUNTAINS, COLORADO, $ 10 MF 1878 / GEOLOGIC MAP, BECK MOUNTAIN, CRESTONE PEAK & CRESTONE QUADRANGLE, COLORADO, $ 10 MF 1882 / PRELIMINARY GEOLOGIC MAP, ANVIL POINTS QUADRANGLE, COLORADO, $ 10 MF 1942 / GEOLOGIC MAP AND SECTIONS, VALLEY VIEW HOT SPRINGS QUADRANT, COLORADO, $ 10 MF 1989 / PRELIMINARY GEOLOGIC MAP OF THE NO NAME RIDGE QUADRANGLE, COLORADO, $ 10 MF 2003 / RECONNASSANCE GEOLOGIC MAP OF THE COLONA QUADRANGLE, COLORADO, $ 10 MF 2008 B / SURFACE VITRINITE-REFLECTANCE MAP OF THE UINTA, PICEANCE, AND EAGLE BASINS, COLORADO, $ 10 MF 2080 / DISTRIBUTION OF URANIUM DEPOSIT CLUSTERS IN THE COLORADO PLATEAU URANIUM PROVINCE, $ 1 MF 2152 / SILVER-LEAD-ZINC DEPOSITS IN THE LAKE CITY AREA, HINSDALE CO., $ 10 MF 2163 / MINERALIZED AREAS AND PRINICIPLE LODE MINES IN SO. 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GEOLOGICAL MAP OF THE TELLURIDE QUADRANGLE, COLORADO, $ 10 GQ 0511 / GEOLOGIC MAP OF THE MARCELLINA MOUNTAIN QUADRANGLE, COLORADO, $ 10 GQ 0512 / GEOLOGIC MAP OF THE MARBLE QUADRANGLE, COLORADO, $ 10 GQ 0536 / GEOLOGIC MAP OF THE DOLORES PEAK QUADRANGLE, COLORADO, $ 10 GQ 0578 / GEOLOGIC MAP OF THE OH-BE-JOYFUL QUADRANGLE, COLORADO, $ 10 GQ 0596 / GEOLOGIC MAP OF THE MOUNT TYNDALL QUADRANGLE, COLORADO, $ 10 GQ 0631 / GEOLOGICAL MAP OF THE BRISTOL HEAD QUADRANGLE, COLORADO, $ 10 GQ 0702 / GEOLOGIC MAP OF THE ELK SPRINGS QUADRANGLE, COLORADO, $ 10 GQ 0703 / GEOLOGIC MAP OF THE BANTY POINT QUADRANGLE, COLORADO, $ 10 GQ 0704 / GEOLOGIC MAP OF THE CHAIR MOUNTAIN QUADRANGLE, COLORADO, $ 10 GQ 0725 / GEOLOGIC MAP OF THE HANOVER NW QUADRANGLE, COLORADO, $ 10 GQ 0747 / GEOLOGIC MAP OF THE BLACK RIDGE QUADRANGLE, COLORADO, $ 10 GQ 0783 / GEOLOGIC MAP OF THE CORRAL BLUFFS QUADRANGLE, COLORADO, $ 10 GQ 0788 / GEOLOGIC MAP OF THE MAROON BELLS QUADRANGLE, COLORADO, $ 10 GQ 0797 / GEOLOGIC MAP OF THE RICO QUADRANGLE, COLORADO, $ 10 GQ 0812 / GEOLOGIC MAP OF THE BLACK CABIN GULCH QUADRANGLE, COLORADO, $ 10 GQ 0829 / GEOLOGIC MAP OF THE DRAKE QUADRANGLE, COLORADO, $ 10 GQ 0832 / GEOLOGIC MAP OF THE MASONVILLE QUADRANGLE, COLORADO, $ 10 GQ 0833 / GEOLOGIC MAP OF THE NEDERLAND QUADRANGLE, COLORADO, $ 10 GQ 0835 / GEOLOGIC MAP OF THE MELLEN HILL QUADRANGLE, COLORADO, $ 10 GQ 0853 / GEOLOGIC MAP OF THE SNOWMASS MOUNTAIN QUADRANGLE, COLORADO, $ 10 GQ 0863 / GEOLOGIC MAP OF THE HAYDEN PEAK QUADRANGLE, COLORADO, $ 10 GQ 0875 / GEOLOGIC MAP OF THE PEORIA QUADRANGLE, COLORADO, $ 10 GQ 0903 / GEOLOGIC MAP OF THE RANGELY QUADRANGLE, COLORADO, $ 10 GQ 0932 / GEOLOGIC MAP OF THE HIGHLAND PEAK QUADRANGLE, $ 10 GQ 0933 / GEOLOGY OF THE ASPEN QUADRANGLE, COLORADO, $ 10 GQ 0952 / GEOLOGIC MAP OF THE MOUNT HARVARD QUADRANGLE, $ 10 GQ 0967 / GEOLOGY OF THE WOODY CREEK QUADRANGLE, COLORADO, $ 10 GQ 0978 / GEOLOGY OF THE TUNGSTEN QUADRANGLE, COLORADO, $ 10 GQ 1004 / GEOLOGIC MAP OF THE RUEDI QUADRANGLE, COLORADO, $ 10 GQ 1011 / GEOLOGIC MAP OF THE WETTERHORN PEAK QUADRANGLE, COLORADO, $ 10 GQ 1018 / GEOLOGIC MAP OF THE BRUSHY POINT QUADRANGLE, COLORADO, $ 10 GQ 1019 / GEOLOGIC MAP OF THE RAZORBACK RIDGE QUADRANGLE, COLORADO, $ 10 GQ 1052 / GEOLOGIC MAP OF THE SPAR CITY QUADRANGLE, COLORADO, $ 10 GQ 1053 / GEOLOGIC MAP OF THE CREEDE QUADRANGLE, COLORADO, $ 10 GQ 1070 / GEOLOGIC MAP OF THE CARPENTER RIDGE QUADRANGLE, COLORADO, $ 10 GQ 1071 / GEOLOGIC MAP OF THE GATEVIEW QUADRANGLE, COLORADO, $ 10 GQ 1073 / GEOLOGIC MAP OF THE INDIAN HILLS QUADRANGLE, COLORADO, $ 10 GQ 1086 / GEOLOGIC MAP OF THE CALF CANYON QUADRANGLE, COLORADO, $ 10 GQ 1113 / GEOLOGIC MAP OF THE HENDERSON RIDGE QUADRANGLE, COLORADO, $ 10 GQ 1115 / GEOLOGIC MAP OF THE HENDERSON RIDGE QUADRANGLE, COLORADO, $ 10 GQ 1131 / GEOLOGIC MAP OF THE SMIZER GULCH QUADRANGLE, COLORADO, $ 10 GQ 1134 / GEOLOGIC MAP OF THE IRIS NW QUADRANGLE, COLORADO, $ 10 GQ 1343 / GEOLOGICAL MAP OF THE MILLIGAN LAKES QUADRANGLE, COLORADO, $ 10 GQ 1144 / GEOLOGIC MAP OF THE LONE MOUNTAIN QUADRANGLE, COLORADO, $ 10 GQ 1145 / GEOLOGIC MAP OF THE MAYBELL QUADRANGLE, COLORADO, $ 10 GQ 1153 / GEOLOGIC MAP OF THE TRAIL MOUNTAIN QUADRANGLE, COLORADO, $ 10 GQ 1156 / GEOLOGIC MAP OF THE TRAIL MOUNTAIN QUADRANGLE, COLORADO, $ 10 GQ 1177 / GEOLOGIC MAP OF THE RUDOLPH HILL QUADRANGLE, COLORADO, $ 10 GQ 1178 / GEOLOGIC MAP OF THE POWDERHORN QUADRANGLE, COLORADO, $ 10 GQ 1195 / GEOLOGIC MAP OF THE ROUGH GULCH QUADRANGLE, COLORADO, $ 10 GQ 1224 / GEOLOGIC MAP OF THE BOTTLE PASS QUADRANGLE, COLORADO, $ 10 GQ 1229 / GEOLOGIC MAP OF THE NIWOT QUADRANGLE, COLORADO, $ 10 GQ 1248 / GEOLOGIC MAP OF THE BLACK HAWK QUADRANGLE, $ 10 GQ 1277 / GEOLOGY OF THE WARD QUADRANGLE, COLORADO, $ 10 GQ 1286 / GEOLOGIC MAP OF THE IRIS QUADRANGLE, COLORADO, $ 10 GQ 1287 / GEOLOGIC MAP OF THE HOUSTON GULCH QUADRANGLE, COLORADO, $ 10 GQ 1323 / GEOLOGIC MAP OF THE BIG NARROWS QUADRANGLE, COLORADO, $ 10 GQ 1337 / GEOLOGIC MAP OF THE HOUSTON GULCH QUADRANGLE, COLORADO, $ 10 GQ 1343 / GEOLOGIC MAP OF THE MILLIGAN LAKES QUADRANGLE, COLORADO, $ 10 GQ 1345 / GEOLOGIC MAP OF THE JEFFERSON QUADRANGLE, COLORADO, $ 10 GQ 1392 / GEOLOGIC MAP OF THE LAFAYETTE QUADRANGLE, COLORADO, $ 10 GQ 1401 / GEOLOGIC MAP OF THE JONES HOLE QUADRANGLE, COLORADO, $ 10 GQ 1403 / GEOLOGIC MAP OF THE CANYON OF LODORE QUADRANGLE, COLORADO, $ 10 GQ 1408 / GEOLOGIC MAP OF THE ZENOBIA PEAK QUADRANGLE, COLORADO, $ 10 GQ 1413 / GEOLOGY OF THE HIGHLANDS RANCH QUADRANGLE, COLORADO, $ 10 GQ 1427 / GEOLOGIC MAP OF THE FORT LOGAN QUADRANGLE, COLORADO, $ 10 GQ 1443 / GEOLOGIC MAP OF THE CHICKEN CREEK SW QUADRANGLE, COLORADO, $ 10 GQ 1453 / GEOLOGIC MAP OF THE ARVADA QUADRANGLE, COLORADO, $ 10 GQ 1514 / GEOLOGIC MAP OF THE PLUG HAT ROCK QUADRANGLE, COLORADO, $ 10 GQ 1516 / GEOLOGIC MAP OF THE INDIAN WATER CANYON QUAD., COLORADO, $ 10 GQ 1524 / GEOLOGIC MAP/PHYSICAL PROPERTIES OF THE SURFICIAL & BEDROCK UNITS, ENGLEWOOD QUADRANGLE, COLORADO, $ 10 GQ 1525 / GEOLOGY OF THE GOLD HILL QUADRANGLE, COLORADO, $ 10 GQ 1530 / GEOLOGIC MAP OF THE STUNTZ RESERVOIR QUADRANGLE, COLORADO, $ 10 GQ 1534 / GEOLOGIC MAP OF THE TANKS PEAK QUADRANGLE, COLORADO, $ 10 GQ 1535 / GEOLOGIC MAP OF THE HAYSTACK ROCK QUADRANGLE, COLORADO, $ 10 GQ 1536 / GEOLOGIC MAP OF THE HELLS CANYON QUADRANGLE, COLORADO, $ 10 GQ 1541 / GEOLOGIC MAP OF THE COMMERCE CITY QUADRANGLE, COLORADO, $ 10 GQ 1658 / GEOLOGIC MAP OF THE LODORE NORTH QUADRANGLE, COLORADO, $ 10 GQ 1595 / GEOLOGY OF THE HANDIES PEAK QUADRANGLE, COLORADO, $ 10 GQ 1604 / GEOLOGIC MAP OF THE MT. AXTELL QUADRANGLE, COLORADO, $ 10 GQ 1613 / GEOLOGIC MAP OF THE BARCUS CREEK SE QUADRANGLE, COLORADO, $ 10 GQ 1618 / GEOLOGIC MAP OF THE LIVERMORE QUADRANGLE, COLORADO, $ 18 GQ 1621 / GEOLOGIC MAP OF THE LA PORTE QUADRANGLE, COLORADO, $ 18 Colorado USGS 7.5 Minute Topographic Maps, folded, $ 5 each Baca County: Big Rock Grange, Bisonte, Campo, Campo NW, Campo NE, Elder, Floating W Ranch, Harbord, Horse Creek Springs, Lone Rock, Lycan, Midway, Midway SW, Moore Draw SW, Moore Draw SE, Pritchard, Pritchett NW, Springfield SW, Springfield W, Stonington, Stonington SE, Table Mesa (partly in Las Animas County), Two Buttes Reservoir, Utleyville (partly in Las Animas County), Vilas N, Vilas S, Walsh SE Bent County: Clay Ranch (partly in Baca and Las Animas Counties), Denny Lake, Dripping Spring Boulder County: Longs Peak El Paso County: Colorado Springs Gilpin County: Black Hawk, Central City Grand County: Gore Pass Jefferson County: Golden Las Animas County: Andrix, Branson SE, Branson, Brown Sheep Camp, Buck Canyon, Cherry Canyon, Cobert Mesa, Dalerose Mesa, Dennis Canyon, Doss Canyon N, Doss Canyon S, Furnish Canyon W, Humbar Spring, Icehouse Canyon, Jesus Canyon, Johnson Canyon, Kim South, Kim North, Lambing Spring, Pintada Creek, Plum Creek, Robbers Roost Canyon, Rock Crossing, Tobe,Trementina Canyon, Trinchera, Trinchera Pass (partly in Colfax and Union Co., New Mexico), Villegreen Park County: Meridian Hill Prowers County: Cat Creek, Cat Creek NW, Cat Creek NE, Durkee Creek NE, Lycan, Lycan SE, North Plum Creek SE, North Plum Creek NE, North Plum Creek NW, Pipe Spring, Plains Community, Walker Canyon, Webb (partly in Baca County) Colorado USBM Publications IC 6662 / MINING METHODS AND COSTS AT THE VANADIUM MINE OF THE U.S. VANADIUM CORPORATION, RIFLE, COLORADO, $ 22 IC 6673 / METHODS AND COSTS OF MINING FERBERITE ORE AT THE COLD SPRINGS MINE, NEDERLAND, BOULDER COUNTY, COLORADO, $ 22 IC 6685 / METHODS AND COSTS OF MILLING FERBERITE ORE AT THE WOLF TONGUE CONCENTRATOR, NEDERLAND, BOULDER COUNTY, COLORADO, $ 21 IC 6739 / MILLING METHODS AND COSTS AT THE GOLDEN CYCLE MILL, COLORADO SPRINGS, COLORADO, $ 11 IC 6806 / MINING METHODS AND COSTS AT THE CRESSON MINE, CRIPPLE CREEK, COLORADO, $ 28 IC 6976 / OPERATIONS AND COSTS AT THE ST. JOE MINING & MILLING COMPANY, BOULDER, COLORADO, $ 42 IC 6982 / PUMPING OPERATIONS IN THE CRIPPLE CREEK DISTRICT, COLORADO, $ 35 IC 6990 / MINING AND MILLING METHODS AND COSTS AT THE SUMMITVILLE CONSOLIDATED MINES, INC., SUMMITVILLE, COLORADO, $ 46 IC 7058 / MINING & MILLING METHODS AND COSTS AT THE ALICE UNIT OF THE AMERICAN SMELTING AND REFINING COMPANY, ALICE, COLORADO, $ 36 IC 7094 / MINING METHODS AND COSTS AT THE SOUTH BURNS SHAFT OF THE GOLDEN CONQUEROR MINES, INC., CRIPPLE CREEK, COLORADO, $ 45 IC 7101 / MINING & MILLING METHODS AND COSTS IN THE ALMA DISTRICT, COLORADO, $ 90 IC 7731 / TUNGSTEN POTENTIAL IN THE SAN JUAN AREA; OURAY, SAN JUAN, AND SAN MIGUEL COUNTIES, COLORADO, $ 24 IC 7748 / TUNGSTEN POTENTIAL IN CHAFFEE, FREMONT, GUNNISON, LAKE, LARIMER, PARK, AND SUMMIT COUNTIES, COLORADO, $ 24 IC 7918 / RECONNAISSANCE OF IRON OCCURRENCES IN COLORADO, $ 26 IC 8294 / METHODS AND COSTS OF CONSTRUCTING THE UNDERGROUND FACILITY OF THE NORTH AMERICAN AIR DEFENSE COMMAND, $ 10 IC 8464 / SILVER POTENTIAL AND ECONOMIC ASPECTS OF THE LEADVILLE DISTRICT, COLORADO, orignal copy, $ 65 IC 8464 / SILVER POTENTIAL AND ECONOMIC ASPECTS OF THE LEADVILLE DISTRICT, COLORADO, fine quality photocopy in afb, $ 48 RI 5679 / CEBOLLA CREEK TITANIFEROUS IRON DEPOSITS, GUNNISON COUNTY, COLORADO, $ 26 RI 5869 / FROTH FLOATATION AND CHEMICAL PROCESSING OF COLORADO FERBERITE ORES, $ 15 RI 6137 / DETERMINATION OF STRESSES AROUND AN UNDERGROUND OPENING, CLIMAX MOLYBDENUM MINE, COLORADO, $ 20 RI 6653 / STRESSES INDUCED AROUND MINE DEVELOPMENT WORKING BY UNDERCUTTING AND CAVING, CLIMAX MOLYBDENUM MINE, COLORADO, PART 1. USE AND EVALUATION OF GAGES FOR MEASURING STRAIN AND DEFORMATION, $ 35 RI 7486 / STATISTICAL ANALYSIS OF ASSAY DATA FROM THE ROUND MOUNTAIN SILVER PROSPECT, CUSTER COUNTY, COLORADO, $ 15 RI 7798 / MICROSEISMIC SOURCE LOCATIONS AROUND BLOCK CAVING AT THE CLIMAX MOLYBDENUM MINE, $ 29

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