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  1. The amphibia and reptilia of Colorado / Max M. Ellis and Junius Henderson.
    By: Ellis, Max Mapes,
    Publication info: Boulder :University of Colorado,1913.
    Contributed by: Smithsonian Libraries
    Subjects: Amphibians  Colorado  Reptiles  
    BHL Collections: Smithsonian Institution Libraries
    View Book
  2. An analysis of culture change in the Ackmen-Lowry area / John B. Rinaldo, Assistant, Archaeology.
    By: Rinaldo, John B.
    Publication info: [Chicago]Chicago Natural History Museum,1950.
    Contributed by: Field Museum Library
    Subjects: Colorado  Indian pottery  North America  Pottery  
    BHL Collections: Field Museum Library
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  3. Annual report of the United States Geological and geographical survey of the territories : embracing Colorado and parts of adjacent territories; being a report of progress of the exploration for the year 1874 /
    By: Hayden, F. V. - Geological and Geographical Survey of the Territories (U.S.)
    Publication info: Washington, D.C. :G.P.O.,1876.
    Contributed by: Smithsonian Libraries
    Subjects: Colorado  Geology  
    BHL Collections: Smithsonian Institution Libraries
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  4. Annual report upon explorations and surveys in the department of the Missouri /
    By: Ruffner, E.H. - Strecker, Herman,
    Publication info: Washington : U.S. Govt. Print. Off.,1878.
    Contributed by: Smithsonian Libraries
    Subjects: Colorado  Insects  Missouri  Natural history  New Mexico  
    BHL Collections: Smithsonian Institution Libraries
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  5. Archaeological investigations in New Mexico, Colorado, and Utah (with 14 plates) by J. Walter Fewkes.
    By: Fewkes, Jesse Walter,
    Publication info: Washington,The Smithsonian Institution,1917.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Archaeology  Colorado  New Mexico  Utah  
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  6. Archaeological work in the Ackmen-Lowry area, southwestern Colorado, 1937, by Paul S. Martin ... With reports by Carl Lloyd and Alexander Spoehr.
    By: Martin, Paul S. - Lloyd, Carl. - Spoehr, Alexander,
    Publication info: Chicago:Field Museum Press,1938
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Antiquities  Colorado  Indians of North America  
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  7. Atlas to accompany monograph XXXI on the geology of the Aspen District, Colorado /
    By: Spurr, Josiah Edward, - Spurr, Josiah Edward, - Geological Survey (U.S.)
    Publication info: Washington :U.S. Geological Survey,1898.
    Contributed by: Harold B. Lee Library (archive.org)
    Subjects: Aspen District (Colo.)  Colorado  Geology  Maps  Physical maps  Pitkin County  
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  8. Biennial report of the State Forest, Game and Fish Commissioner of the State of Colorado for the years 1897 and 1898 : J. S. Swan, Commissioner.
    By: Colorado.
    Publication info: Denver, Colo. :Smith-Brooks, State Printers,1898.
    Contributed by: Library of Congress
    Subjects: Colorado  Fisheries  Forests and forestry  Game and game-birds  Wildlife conservation  
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  9. The birds of Colorado /
    By: Cooke, Wells Woodbridge,
    Publication info: Fort Collins, Colo. :State Agricultural College, Agricultural Experiment Station,1897.
    Contributed by: Cornell University Library
    Subjects: Birds  Colorado  
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  10. The birds of El Paso County, Colorado /
    By: Aiken, Charles Edward Howard, - Colorado College.
    Publication info: Colorado Springs :Published by the authority of the Board of Trustees of Colorado College,1914
    Contributed by: Cornell University Library
    Subjects: Birds  Colorado  El Paso County  
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  11. Birds of the Rockies, by Leander S. Keyser... with eight full-page plates [four in color] by Louis Agassiz Fuertes; many illustrations in the text by Bruce Horsfall, and eight views of localities from photographs; with a c
    By: Keyser, Leander Sylvester,
    Publication info: Chicago,A. C. McClurg and co.,1902.
    Contributed by: Prelinger Library (archive.org)
    Subjects: Birds  Colorado  
    View Book
  12. Birds of the Rockies, by Leander S. Keyser... with eight full-page plates [four in color] by Louis Agassiz Fuertes; many illustrations in the text by Bruce Horsfall, and eight views of localities from photographs; with a c
    By: Keyser, Leander S.
    Publication info: Chicago,A. C. McClurg and co.,1902.
    Contributed by: American Museum of Natural History Library
    Subjects: 59.82(78)  Birds  Colorado  Rocky Mountains  
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  13. Brand book, containing the brands of the Bent County cattle and horse growers' association for the year of 1885.
    By: Bent County cattle and horse growers' association, Colorado.
    Publication info: West Las Animas, Colo.,Printed at the Leader office,1885.
    Contributed by: Library of Congress
    Subjects: Bent Co  Colorado  Livestock brands  
    View Book
  14. Bulletin.
    By: Colorado Geological Survey. - Essex Institute.
    Publication info: Salem, Mass.
    Contributed by: Robarts - University of Toronto (archive.org)
    Subjects: Colorado  Essex County (Mass.)  Geology  History  Natural history  Societies, etc  
    View Book
  15. Canon City District wilderness planning amendment.
    By: United States.
    Publication info: Denver, Colo. :U.S. Dept. of the Interior, Bureau of Land Management,[1982]
    Contributed by: Bureau of Land Management (archive.org)
    Subjects: Canon City  Colorado  Environmental aspects  Land use  Management  Planning  Public lands  Wilderness areas  
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  16. The Carboniferous formations and faunas of Colorado / by George H. Girty.
    By: Girty, George Herbert,
    Publication info: Washington :Govt. print. off.,1903.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    Subjects: Carboniferous  Colorado  Geology  Geology, Stratigraphic  Mollusks, Fossil  Paleontology  
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  17. Colorado ...
    By: United States Railroad Administration.
    Publication info: Chicago,Poole bros.,1919?
    Contributed by: Library of Congress
    Subjects: Agriculture  Colorado  Economic conditions  
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  18. Colorado as an agricultural state.
    By: Pabor, William Edgar,
    Publication info: New York,Orange Judd co.,1883.
    Contributed by: Library of Congress
    Subjects: Agriculture  Colorado  Description and travel  
    View Book
  19. Colorado flora.
    By: Jones, Marcus E. - Engelmann, George,
    Publication info: [Oquawka, Illinois] :H.N. Patterson, printer,1878.
    Contributed by: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: Colorado  Plants  
    BHL Collections: Engelmann Herbarium
    View Book
  20. Colorado State Forestry Association. Organized November 19th, 1884 ...
    By: Colorado State Forestry Association.
    Publication info: Denver, Colo.,The Republican Publishing Company, Printers,1884.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Colorado  Colorado State Forestry Association  Forests and forestry  
    View Book
  21. Concerning the duties of the secretary of the State board of agriculture,
    By: Colorado.
    Publication info: Fort Collins, Col.,1887.
    Contributed by: Library of Congress
    Subjects: Agriculture  Colorado  Seed distribution  State Board of Agriculture  
    View Book
  22. Contribution to the fossil flora of Florissant, Colorado.
    By: Kirchner, Walter Charles George,
    Publication info: [n.p.]1898.
    Contributed by: Mertz Library, The New York Botanical Garden
    Subjects: Colorado  Florissant  Paleobotany  Tertiary  
    BHL Collections: New York Botanical Garden
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  23. The cost of producing apples in western Colorado : a detailed study, made in 1914-15, of the current cost factors involved in the maintenance of orchards and the handling of the crop on 125 farms in the fruit regions of Mesa, Delta, and Montrose Count
    By: Thomson, S. M. - Miller, G. H.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1917.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Apples  Colorado  Costs  
    View Book
  24. Defoliation effects on plant production, vigor, and carbohydrate reserve status for several storage important Colorado range species : a progress report
    By: Buwai, Malami. - Trlica, M. J. - United States.
    Publication info: [Denver, Colo. :The Bureau],1974.
    Contributed by: Bureau of Land Management (archive.org)
    Subjects: Carbohydrates  Colorado  Defoliation  Growth (Plants)  Range plants  
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  25. Distribution of mammals in Colorado.
    By: Armstrong, David M.
    Publication info: Lawrence, Kan. :University of Kansas Printing Service,1972.
    Contributed by: Smithsonian Libraries
    Subjects: Colorado  Mammals  
    BHL Collections: Smithsonian Institution Libraries
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  26. Enumeration of the species of plants collected by Dr. C.C. Parry and Messrs. Elihu Hall and J.P. Harbour during the summer and autumn of 1862 on and near the Rocky Mountains in Colorado Territory, lat. 39 - 41.
    By: Gray, Asa,
    Publication info: [Philadelphia],1863.
    Contributed by: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: Colorado  Plants  
    BHL Collections: Engelmann Herbarium
    View Book
  27. Une excursion botanique au Colorado et dans le Far West /
    By: Jones, Marcus E.
    Publication info: Liège :Secrétariat de la Fédération,1880.
    Contributed by: Mertz Library, The New York Botanical Garden
    Subjects: Colorado  Plants  Utah  
    BHL Collections: New York Botanical Garden
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  28. Experiments and suggestions for the control of the codling moth in the Grand Valley of Colorado /
    By: Siegler, E. H. - Plank, H. K. - Colorado Agricultural Experiment Station.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1921.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Codling moth  Colorado  Control  Diseases and pests  Fruit  
    View Book
  29. Fishes of Colorado / Max M. Ellis.
    By: Ellis, Max Mapes, - University of Colorado (Boulder campus.
    Publication info: Boulder :University of Colorado,1914.
    Contributed by: Smithsonian Libraries
    Subjects: Colorado  Fishes  
    BHL Collections: Smithsonian Institution Libraries
    View Book
  30. The flora of Boulder, Colorado, and vicinity, by Francis Potter Daniels ...
    By: Daniels, Francis Potter,
    Publication info: [Columbia, Mo.]The University of Missouri,1911.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Botany  Boulder  Colorado  
    View Book
  31. The flora of Boulder, Colorado, and vicinity.
    By: Daniels, Francis Potter,
    Publication info: [Columbia, Mo.]The University of Missouri,1911.
    Contributed by: Mertz Library, The New York Botanical Garden
    Subjects: Boulder  Colorado  Plants  
    BHL Collections: New York Botanical Garden
    View Book
  32. Flora of Colorado,
    By: Rydberg, Per Axel,
    Publication info: Fort Collins, Col.,Experiment Station,1906.
    Contributed by: Cornell University Library
    Subjects: Botany  Colorado  
    View Book
  33. Flora of Colorado, by P. A. Rydberg, PH. D.
    By: Rydberg, Per Axel,
    Publication info: Fort Collins, Col.,Experiment Station,1906.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Botany  Colorado  
    View Book
  34. Flora of Colorado, by P.A. Rydberg.
    By: Rydberg, Per Axel,
    Publication info: Fort Collins, Col.,Experiment Station,1906.
    Contributed by: Mertz Library, The New York Botanical Garden
    Subjects: Colorado  Floras  Plants  
    BHL Collections: New York Botanical Garden
    View Book
  35. Flora of Colorado, by P.A. Rydberg.
    By: Rydberg, Per Axel,
    Publication info: Fort Collins, Col.,Experiment Station,1906.
    Contributed by: Smithsonian Libraries
    Subjects: Botany  Colorado  
    BHL Collections: Smithsonian Institution Libraries
    View Book
  36. The flora of southwestern Colorado / by T.S. Brandegee.
    By: Brandegee, Townshend Stith,
    Publication info: Washington :Dept. of the Interior, U.S. Geological and Geographical Survey of the Territories,1876.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Botany  Colorado  
    View Book
  37. Fruit culture in Colorado : a manual of information.
    By: Pabor, William E.
    Publication info: Denver, Colo. :Pabor,1883.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Colorado  Fruit-culture  
    View Book
  38. Geology and mineral resource potential of the Black Ridge Canyon wilderness study area, Mesa County, Colorado : (GEM phase 2) /
    By: Toth, Margo I. - Geological Survey (U.S.)
    Publication info: [Reston, Va.?] : 1983
    Contributed by: Bureau of Land Management (archive.org)
    Subjects: Black Ridge Canyon (Colo.)  Colorado  Geological surveys  Mines and mineral resources  Prospecting  
    View Book
  39. Geology and mining industry of Leadville, Colorado : with atlas / by Samuel Franklin Emmons
    By: Emmons, Samuel Franklin, - Cross, Whitman, - Guyard, Anthony - Hillebrand, W. F. - Geological Survey (U.S.)
    Publication info: Washington [D.C.] :United States Geological Survey,1886
    Contributed by: University of California Libraries (archive.org)
    Subjects: Colorado  Geology  Leadville Region  Mines and mineral resources  Mosquito Range  
    View Book
  40. Geology and underground waters of the Arkansas Valley in eastern Colorado,
    By: Darton, N[elson] H[oratio],
    Publication info: Washington,Gov't print. off.,1906.
    Contributed by: Library of Congress
    Subjects: Arkansas River Valley  Colorado  Geology  Groundwater  
    View Book
  41. Geology of the Denver basin in Colorado / by Samuel Franklin Emmons, Whitman Cross and George Homans Eldridge.
    By: Emmons, Samuel Franklin, - Cross, Whitman, - Eldridge, George Homans,
    Publication info: Washington, :Govt. Print. Off.,1896.
    Contributed by: University of Connecticut Libraries (archive.org)
    Subjects: Colorado  Geology  
    View Book
  42. A history of the birds of Colorado,
    By: Sclater, William Lutley,
    Publication info: London,Witherby & Co.,1912.
    Contributed by: Cornell University Library
    Subjects: Birds  Colorado  History  Ornithology  
    View Book
  43. A history of the birds of Colorado, by William Lutley Sclater ...
    By: Sclater, William Lutley,
    Publication info: London,Witherby & co.,1912.
    Contributed by: American Museum of Natural History Library
    Subjects: 59.82(78.8)  Birds  Colorado  History  Ornithology  
    View Book
  44. Hydrologic and climatologic data, southeastern Uinta basin, Utah and Colorado : water year 1978 /
    By: Conroy, Loretta S. - United States. - United States. Bureau of Land Management. - Utah. Dept. of Natural Resources.
    Publication info: Salt Lake City, Utah : U.S. Dept. of the Interior, Geological Survey, 1980.
    Contributed by: Bureau of Land Management (archive.org)
    Subjects: Climate  Colorado  Hydrology  Uinta region  Uinta region (Utah and Colo.)  Utah  
    View Book
  45. Kremmling resource management plan, record of decision /
    By: United States.
    Publication info: [Kremmling, Colo.?] :The Bureau,[1984]
    Contributed by: Bureau of Land Management (archive.org)
    Subjects: Bureau of Land Management  Colorado  Kremmling Resource Area  Land use  Management  Public lands  Range management  United States  
    View Book
  46. Life history of the codling moth in the Grand Valley of Colorado /
    By: Siegler, E. H. - Plank, H. K. - Colorado Agricultural Experiment Station.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1921.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Codling moth  Colorado  Diseases and pests  Fruit  
    View Book
  47. Lowry ruin in southwestern Colorado / Paul S. Martin ; with reports on masonry of Lowry ruin and of the Southwest, by Lawrence Roys, and skeletal material from the Lowry area, by Gerhardt von Bonin.
    By: Martin, Paul S. - Bonin, Gerhardt von, - Roys, Lawrence,
    Publication info: Chicago :Field Museum of Natural History,1936.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Antiquities  Colorado  Indians of North America  
    View Book
  48. Modified basket maker sites, Ackmen-Lowry area, southwestern Colorado, 1938 / by Paul S. Martin. With a report by John Rinaldo.
    By: Martin, Paul S. - Rinaldo, John B.
    Publication info: Chicago:Field Museum Press,1939
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Antiquities  Colorado  Indians of North America  
    View Book
  49. New crocodilians from the Upper Paleocene of western Colorado / by Karl P. Schmidt --
    By: Schmidt, Karl Patterson,
    Publication info: Chicago :Field Museum of Natural History,1938.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Colorado  Crocodiles, Fossil  Paleontology  Tertiary  
    View Book
  50. New Pantodonta and Dinocerata from the Upper Paleocene of western Colorado / by Bryan Patterson --
    By: Patterson, Bryan,
    Publication info: Chicago :Field Museum of Natural History,1939.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Colorado  Eocene  Paleontology  Ungulates, Fossil  
    View Book
  51. New phytophagous Hymenoptera from the Tertiary of Florissant, Colorado / by Charles T. Brues.
    By: Brues, Charles T.
    Publication info: Cambridge, Mass. :The Museum,1908.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Colorado  Florissant  Hymenoptera, Fossil  Paleontology  Tertiary  
    View Book
  52. A new species of the fossorial mammal Arctoryctes from the Oligocene of Colorado / Charles A. Reed --
    By: Reed, Charles A.
    Publication info: [Chicago] :Chicago Natural History Museum,1956.
    Contributed by: Field Museum Library
    Subjects: Arctoryctes  Colorado  Oligocene  Paleontology  
    BHL Collections: Field Museum Library
    View Book
  53. A new turtle from the Paleocene of Colorado / Karl P. Schmidt --
    By: Schmidt, Karl Patterson,
    Publication info: [Chicago] :Chicago Natural History Museum Press ,1945.
    Contributed by: Field Museum Library
    Subjects: Colorado  Eocene  Paleontology  Turtles, Fossil  
    BHL Collections: Field Museum Library
    View Book
  54. Ninth annual report of the United States Geological and Geographical Survey of the Territories : embracing Colorado and parts of adjacent territories; being a report of progress of the exploration for the year 1875 /
    By: Geological and Geographical Survey of the Territories (U.S.) - Hayden, F. V.
    Publication info: Washington :Govt. Print. Off.,1877.
    Contributed by: Harold B. Lee Library (archive.org)
    Subjects: American bison  Colorado  Geology  Insect pests  West (U.S.)  
    View Book
  55. Oil shale tract C-b : environmental monitoring report 6/83-11/83 /
    By: C-b Shale Oil Project.
    Publication info: [Grand Junction, Colo.] :Cathedral Bluffs Shale Oil Co.,1983-
    Contributed by: Bureau of Land Management (archive.org)
    Subjects: Colorado  Environmental aspects  Environmental monitoring  Oil-shale industry  Rio Blanco County  
    View Book
  56. Oil shale tract C-b : environmental monitoring report /
    By: C-b Shale Oil Project.
    Publication info: [Grand Junction, Colo.] :Cathedral Bluffs Shale Oil Co.,1982-
    Contributed by: Bureau of Land Management (archive.org)
    Subjects: Colorado  Environmental aspects  Environmental monitoring  Oil-shale industry  Rio Blanco County  
    View Book
  57. Oil shale tract C-b : environmental monitoring report /
    By: C-b Shale Oil Project.
    Publication info: Grand Junction, Colo. :Cathedral Bluffs Shale Oil Co.,1983.
    Contributed by: Bureau of Land Management (archive.org)
    Subjects: Colorado  Environmental aspects  Environmental monitoring  Oil-shale industry  Rio Blanco County  
    View Book
  58. Oil shale tract C-b interim monitoring report,
    By: C-b Shale Oil Project.
    Publication info: [Grand Junction, Colo.] :Cathedral Bluffs Shale Oil Co.,1976-
    Contributed by: Bureau of Land Management (archive.org)
    Subjects: Colorado  Environmental aspects  Environmental monitoring  Oil-shale industry  Rio Blanco County  
    View Book
  59. On the frontier reminiscences of wild sports, personal adventures, and strange scenes / by J. S. Campion.
    By: Campion, J. S.
    Publication info: London :Chapman & Hall,1878.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Colorado  Colorado River Valley  Frontier and pioneer life  Hunting  Indians of North America  Kansas  West (U.S.)  
    View Book
  60. One day in Denver's new mountain parks ...
    By: Denver.
    Publication info: Denver,Press of Carson-Harper,c1916
    Contributed by: Library of Congress
    Subjects: Colorado  Denver  Parks  
    View Book
  61. Pamphlets on forestry in Colorado.
    Publication info: 1900-
    Contributed by: University of California Libraries (archive.org)
    Subjects: Colorado  Forests and forestry  
    View Book
  62. Physiographical sketch of that portion of the Rocky Mountain Range :at the head waters of South Clear Creek and east of Middle Park: with an enumeration of the plants collected in this district in the summer months of 1861 /by C.C. Parry.
    By: Parry, C. C. - Parry, Charles Christopher, - Gray, Asa,
    Publication info: New Haven :s.n.,1862?
    Contributed by: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: Colorado  Plants  Rocky Mountains  
    BHL Collections: Engelmann Herbarium
    View Book
  63. Plantae Bakerianae by Edw. L. Greene, and others.
    By: Greene, Edward Lee, - Baker, Carl F.
    Publication info: Washington, D.C. :s.n.,1901
    Contributed by: University of California Libraries (archive.org)
    Subjects: Botany  Colorado  
    View Book
  64. Plantæ Bakerianæ / by Edw. L. Greene and others.
    By: Greene, Edward Lee,
    Publication info: [Washington, D.C. :s.n.,1901.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Botany  Catalogs and collections  Colorado  Plants  
    View Book
  65. A popular flora of Denver, Colorado, / by Alice Eastwood.
    By: Eastwood, Alice, - Zoe Publishing Company.
    Publication info: San Francisco :Zoe Publishing Company ...,[1893].
    Contributed by: University of California Libraries (archive.org)
    Subjects: Botany  Colorado  Denver  Nomenclature  Plants  
    View Book
  66. A popular flora of Denver, Colorado, / by Alice Eastwood.
    By: Eastwood, Alice,
    Publication info: San Francisco :Zoe Publishing Company ...,[1893]
    Contributed by: University of California Libraries (archive.org)
    Subjects: Botany  Colorado  
    BHL Collections: Notable Women in Natural History
    View Book
  67. A preliminary list of the Hemiptera of Colorado / by C. P. Gillette and Carl [i.e. Charles] F. Baker.
    By: Gillette, C. P. - Baker, C. F. - Colorado Agricultural Experiment Station
    Publication info: Fort Collins, Colo. :American Standard,1895.
    Contributed by: Smithsonian Libraries
    Subjects: Colorado  Hemiptera  
    BHL Collections: Smithsonian Institution Libraries
    View Book
  68. A preliminary report on the geology of the Monarch mining district, Chaffee County, Colorado / by R.D. Crawford.
    By: Crawford, R. D. - Colorado Geological Survey.
    Publication info: Boulder :Colorado Geological Survey,1910.
    Contributed by: University of British Columbia Library (archive.org)
    Subjects: Colorado  Geology  Monarch Region  
    View Book
  69. The procession of flowers in Colorado / by Helen Jackson.
    By: Jackson, Helen Hunt,
    Publication info: Boston :Roberts Brothers.,1897.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Colorado  Flowers  
    View Book
  70. Racing laws and rules adopted by the Colorado state racing commission ...
    By: Colorado.
    Publication info: Denver,Smith Brooks press,1914?
    Contributed by: Library of Congress
    Subjects: Colorado  Horse racing  
    View Book
  71. Reminiscences of a sportsman / by J. Parker Whitney
    By: Whitney, Joel Parker,
    Publication info: New York :Forest and Stream Pub. Co.,1906
    Contributed by: University of California Libraries (archive.org)
    Subjects: 1835-1913  Biography  Colorado  Fishers  Fishing  Hunters  Hunting  Mines and mineral resources  West (U.S.)  Whitney, Joel Parker,  
    View Book
  72. Report of an investigation of the grasses of the arid districts of Kansas, Nebraska, and Colorado /
    By: Vasey, George,
    Publication info: Washington, D.C. :Dept. of Agriculture, Botanical Division,1886.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Colorado  Grasses  Kansas  Nebraska  
    View Book
  73. Report of progress in the geological resurvey of the Cripple Creek district, Colorado / by Waldemar Lindgren and Frederick Leslie Ransome.
    By: Lindgren, Waldemar, - Ransome, Frederick Leslie,
    Publication info: Washington,Govt. Print. Off.,1904.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Colorado  Cripple Creek  Cripple Creek District  Geology  Gold mines and mining  Mines and mineral resources  
    View Book
  74. Rio Blanco Oil Shale Project. Tract C-a / [c]by Rio Blanco Oil Shale Project. no.8, Progress report :
    By: Rio Blanco Oil Shale Project. - CDM/Limnetics. - Ecology Consultants, inc. - EG & G Environmental Consultants. - Gulf Oil Corporation. - Limnetics, Inc. - NUS Corporation. - Rio Blanco Oil Shale Project. - Standard Oil Company (Ind.) - Wright Water Engineers.
    Publication info: Denver, Colo. :Rio Blanco Oil Shale Project,1976.
    Contributed by: Bureau of Land Management (archive.org)
    Subjects: Colorado  Environmental aspects  Environmental monitoring  Oil-shale industry  Rio Blanco County  Rio Blanco Oil Shale Project  
    View Book
  75. The Rocky Mountain wonderland,
    By: Mills, Enos Abijah,
    Publication info: Boston and New York,Houghton Mifflin company[1915]
    Contributed by: Cornell University Library
    Subjects: Colorado  Description and travel  Natural history  Outdoor books  Rocky Mountains  
    View Book
  76. The Rocky Mountain wonderland, by Enos A. Mills; with illustrations from photographs ...
    By: Mills, Enos Abijah,
    Publication info: Boston,Houghton Mifflin Company,[1915]
    Contributed by: University of California Libraries (archive.org)
    Subjects: Colorado  Description and travel  Natural history  Outdoor books  Rocky Mountains  
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  77. The small mammals of Colorado, by Edward Royal Warren.
    By: Warren, Edward Royal,
    Publication info: [Denver] :The Colorado mountain club,1921.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Colorado  Mammals  
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  78. Soils of the San Luis Valley, Colorado. By Macy H. Lapham ...
    By: Lapham, Macy H.
    Publication info: Washington,Govt. print. off.,1912.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Colorado  San Luis Valley  Soils  
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  79. The spell of the Rockies, by Enos A. Mills; with illustrations from photographs by the author.
    By: Mills, Enos Abijah,
    Publication info: Boston,Houghton Mifflin Company,1911.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Colorado  Description and travel  Mountaineering  Natural history  Outdoor books  Rocky Mountains  
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  80. Synopsis of the flora of Colorado /by Thomas C. Porter and John M. Coulter.
    By: Porter, Thomas Conrad, - Coulter, John Merle,
    Publication info: Washington :Govt. print. off.,March 20, 1874.
    Contributed by: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: Colorado  Plants  
    BHL Collections: Engelmann Herbarium
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  81. The Tertiary insects of North America by Samuel H. Scudder.
    By: Scudder
    Publication info: Washington :G.P.O.,1890.
    Contributed by: Canadiana.org (archive.org)
    Subjects: Colorado  Insects  Paleontology  Tertiary  
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  82. Topographic, hypsometric, and meteorologic report, by William Libbey, jr., and W. W. McDonald, of the Princeton scientific expedition, 1877. September.
    By: Princeton Scientific Expedition - Libbey, William, - McDonald, Willard Wells,
    Publication info: New York,1879.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Colorado  Meteorology  Surveys  Utah  
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  83. Tract C-b quarterly report, no.1 /
    By: C-b Shale Oil Project.
    Publication info: [Grand Junction, Colo.] :C-b Shale Oil Venture,1975-1977.
    Contributed by: Bureau of Land Management (archive.org)
    Subjects: Colorado  Environmental aspects  Environmental monitoring  Oil-shale industry  Rio Blanco County  
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  84. Tract C-b quarterly report, no.2 /
    By: C-b Shale Oil Project.
    Publication info: [Grand Junction, Colo.] :C-b Shale Oil Venture,1975-1977.
    Contributed by: Bureau of Land Management (archive.org)
    Subjects: Colorado  Environmental aspects  Environmental monitoring  Oil-shale industry  Rio Blanco County  
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  85. Tract C-b quarterly report. no.3 /
    By: C-b Shale Oil Project.
    Publication info: Grand Junction, Colo. :C-b Shale Oil Venture,1975-1977.
    Contributed by: Bureau of Land Management (archive.org)
    Subjects: Colorado  Environmental aspects  Environmental monitoring  Oil-shale industry  Rio Blanco County  
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  86. Uncompahgre Basin proposed resource management plan and final environmental impact statement /
    By: United States.
    Publication info: [Montrose, Colo.] : Resource Area, [1988]
    Contributed by: Bureau of Land Management (archive.org)
    Subjects: Bureau of Land Management  Colorado  Land use  Planning  Public lands  Public opinion  Uncompahgre Basin Resource Area  United States  Wilderness areas  
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  87. Upper Cretaceous floras of the Rocky Mountain region / by Erling Dorf.
    By: Dorf, Erling,
    Publication info: Washington : Carnegie Institute of Washington,1838-1942.
    Contributed by: Mertz Library, The New York Botanical Garden
    Subjects: Colorado  Cretaceous  Paleobotany  Rocky Mountains  Wyoming  
    BHL Collections: New York Botanical Garden
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  88. Wild flowers and trees of Colorado.
    By: Ramaley, Francis,
    Publication info: Boulder,A. A. Greenman,[c1909]
    Contributed by: Cornell University Library
    Subjects: Botany  Colorado  
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  89. Wild flowers of the Rocky Mountains from original water color sketches drawn from nature by Emma Homan Thayer.
    By: Thayer, Emma Homan,
    Publication info: New York :Cassell Pub. Co.,c1889.
    Contributed by: Canadiana.org (archive.org)
    Subjects: Colorado  Description and travel  Rocky Mountains  Rocky Mountains region  Wild flowers  
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  90. Wild life on the Rockies
    By: Mills, Enos Abijah,
    Publication info: Boston ;Houghton Mifflin company,1909.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Biography  Colorado  Description and travel  Estes Park (Colo.)  History  Longs Peak (Colo.)  Natural history  Pioneers  Rocky Mountain National Park (Colo.)  Social life and customs  
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  91. Wild life on the Rockies, by Enos A. Mills; with illustrations from photographs.
    By: Mills, Enos Abijah,
    Publication info: and New York :Houghton Mifflin company,1909.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Colorado  Description and travel  Natural history  Outdoor books  Rocky Mountains  
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  92. With rod and line in Colorado waters ...
    By: France, Lewis B.,
    Publication info: Denver,Chain, Hardy & co.,1884.
    Contributed by: Library of Congress
    Subjects: Colorado  Fishing  
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  93. Zoology of Colorado, by Theodore D.A. Cockerell ...
    By: Cockerell, Theodore D. A.
    Publication info: Boulder, Col.,University of Colorado,1927.
    Contributed by: MBLWHOI Library, Woods Hole
    Subjects: Colorado  Zoology  
    BHL Collections: MBLWHOI Library, Woods Hole
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