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Mining in Colorado : a history of discovery, development and production

Henderson, Charles W. (Charles William), 1885- author.
Washington : Department of the Interior, U.S. Geological Survey, 1926. 1926

Modeling elk and bison carrying capacity for Great Sand Dunes National Park, Baca National Wildlife

Wockner, Gary, author.
Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2015. 2015

Mountains, glaciers, and mines : the geological story of the Blue River Valley, Colorado, and its su

Kellogg, Karl S., author.
Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2016. 2016

The National Park Service did not oversee its general agreements.

United States. Department of the Interior. Office of Inspector General, author.
Washington, DC : Office of Inspector General, U.S. Department of the Interior, 2020. 2020

Ned Wynkoop and the lonely road from Sand Creek

Kraft, Louis, 1947-
Norman : University of Oklahoma Press, ©2011. 2011

Nomenclature of Precambrian rocks in Colorado

Tweto, Ogden, 1912-1983 author.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1977. 1977

The occurrence of minor elements in ash of low-rank coal from Texas, Colorado, North Dakota and Sout

Deul, Maurice, author.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1956. 1956

Oil shale and tar sands resources : resource management plan amendments : record of decision.

United States. Bureau of Land Management.
[Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Land Management, [2008] 2008

Oil shale in Northwestern Colorado and adjacent areas

Winchester, Dean E. (Dean Eddy), 1883-1936 author.
[Washington, D.C.] : Department of the Interior, United States Geological Survey, 1916. 1916

On hypersthene-andesite and on triclinic pyroxene in augitic rocks

Cross, Whitman, 1854-1949, author.
Washington, D.C. : Department of the Interior, United States Geological Survey, 1883. 1883

Opportunities for making wood products from small diameter trees in Colorado

Lynch, Dennis L. (Dennis Lee)
Fort Collins, CO : U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, [2002] 2002

Ore deposits in the vicinity of the London fault of Colorado

Singewald, Q. D. (Quentin Dreyer), 1902-1987, author.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1941. 1941

Origin and microfossils of the oil shale of the Green River formation of Colorado and Utah

Bradley, Wilmot H. (Wilmot Hyde), 1899-1979 author.
Washington : United States Department of the Interior, Geological Survey, 1931. 1931

The oxidized zinc ores of Leadville, Colorado

Loughlin, G. F. (Gerald Francis), 1880-1946.
Washington : Govt. Print. Off., 1918. 1918

Petroleum systems and geologic assessment of oil and gas in the Southwestern Wyoming Province, Wyomi

Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 2005. 2005

Physiography and quaternary geology of the San Juan Mountains, Colorado

Atwood, Wallace Walter, 1872-1949, author.
Washington : United States Department of the Interior, Geological Survey, 1932. 1932

Pikeview quadrangle, Colorado 7.5-minute series

Geological Survey (U.S.), cartographer.
[Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 2010- 2010

Precambrian deposits of zinc-copper-lead sulfides and zinc spinel (gahnite) in Colorado

Sheridan, Douglas M., 1921- author.
[Reston, Va.] : Department of the Interior, United States Geological Survey, 1984. 1984

Proposed oil shale and tar sands resource management plan amendments to address land use allocations

United States. Bureau of Land Management.
[Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Land Management, [2008] 2008

Quaternary geology of the Grand and Battlement Mesas Area, Colorado

Yeend, Warren E., 1936- author.
Washington : United States Department of the Interior, Geological Survey, 1969. 1969

Reconnaissance of the Book cliffs coal field between Grand river, Colorado and Sunnyside, Utah

Richardson, G. B. (George Burr), 1872-1949, author.
Washington, D.C. : Department of the Interior, United States Geological Survey, 1909. 1909

Relation of the carbon/oxygen ratio in coal to igneous intrusions in the Somerset coal field, Colora

Dyni, John R., author.
[Reston, Va.] : United States Department of the Interior, Geological Survey, 1980. 1980

Relation of the Cretaceous formations to the Rocky Mountains in Colorado and New Mexico

Lee, Willis T. (Willis Thomas), 1864-1926 author.
Washington : Department of the Interior, United States Geological Survey, 1916. 1915

Relations of the Wasatch and Green River formations in northwestern Colorado and southern Wyoming wi

Sears, Julian D. (Julian Ducker), 1891- author.
[Washington] : [Department of the Interior, United States Geological Survey], [1925] 1924

Report of progress in the geological resurvey of the Cripple Creek district, Colorado

Lindgren, Waldemar, 1860-1939, author.
Washington, D.C. : Department of the Interior, United States Geological Survey, 1904. 1904

A report on the economic geology of the Silverton quadrangle, Colorado

Ransome, Frederick Leslie, 1868-1935, author.
Washington, D.C. : Department of the Interior, United States Geological Survey, 1901. 1901

Report to Congress: Curecanti resource protection study

Curecanti National Recreation Area (Agency : U.S.), author.
[Denver, Colo.?] : National Park Service, United States Department of the Interior, 2009. 2009

Results of spirit leveling in Colorado, 1896 to 1910, inclusive

Marshall, R. B. (Robert Bradford), 1867-1949, author.
Washington, D.C. : Department of the Interior, United States Geological Survey, 1911. 1911

Results of spirit leveling in Colorado, 1896 to 1914, inclusive

Marshall, R. B. (Robert Bradford), 1867-1949, author.
[Washington, D.C.] : Department of the Interior, United States Geological Survey, 1915. 1914

Revision of the flora of the Green River formation with descriptions of new species

Knowlton, Frank Hall, 1860-1926, author.
[Washington] : [Department of the Interior, United States Geological Survey], [1923] 1922

The Ribes of Colorado and New Mexico and their rust fungi

Van Arsdel, E. P. (Eugene P.), 1925- author.
Fort Collins, Colorado : U.S. Dept. of Agriculture, Forest Service, Forest Health Technology Enterprise Team, 2004. 2004

San Juan Mountains Wilderness Act of 2010 : report (to accompany H.R. 3914) (including cost estimate

United States. Congress. House. Committee on Natural Resources.
[Washington, D.C.] : [U.S. G.P.O.], [2010] 2010

The Sand Creek Massacre : a documentary history

[Mattituck, NY] : Amereon House, [1985] 1985

Sedimentology and paleogeographic significance of six fluvial sandstone bodies in the Maroon Formati

Johnson, Samuel Y., author.
Washington, D.C. : Department of the Interior, U.S. Geological Survey, 1987. 1987

Silas Soule : a short, eventful life of moral courage

Bensing, Tom, author.
Indianapolis, IN : Dog Ear Publishing, [2012] 2012

Some insects of special interest from Florissant, Colorado, and other points in the Tertiaries of Co

Scudder, Samuel Hubbard, 1837-1911, author.
Washington, D.C. : Department of the Interior, United States Geological Survey, 1892. 1892

Somewhere between Kansas City and Denver

Kansas City, MO : Spartan Press, 2019. 2019

The soul of the ghost moth : paths of a naturalist

Callahan, Philip S., 1923-
Old Greenwich, Conn. : Devin-Adair Co., ©1981. 1981

The Southwest : Colorado, New Mexico, Texas

Aylesworth, Thomas G.
New York, N.Y. : Chelsea House, c1988. 1988

Stalking ground

Mizushima, Margaret, author.
New York : Crooked Lane, 2016. 2016

Stratigraphic nomenclature of the thirtynine mile volcanic field, central Colorado

Epis, Rudy C., 1930- author.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1974. 1974

Stratigraphy and refractory clayrocks of the Dakota group along the northern Front Range, Colorado

Waagé, Karl M., author
Washington, D.C. : United States Department of the Interior, Geological Survey, 1961. 1961

Sugar Loaf Fire Protection District Land Exchange Act report (to accompany H.R. 3923) (including cos

United States. Congress. House. Committee on Natural Resources.
[Washington, D.C.] : [U.S. G.P.O.], [2010] 2010

Summary : final resource protection study, environmental impact statement : Curecanti National Recre

Curecanti National Recreation Area (Agency : U.S.), author.
[Denver, Colo.] : National Park Service, U.S. Department of the Interior, 2008. 2008

The things we leave unfinished

Yarros, Rebecca, author.
Parker, CO : Entangled Publishing, LLC, 2021. 2021

To update the map of, and modify the maximum acreage available for inclusion in, the Florissant Foss

United States. Congress. Senate. Committee on Energy and Natural Resources, author.
[Washington, D.C.] : [U.S. Government Publishing Office], [2017] 2017

U.S. Fish and Wildlife Service Wildlife and Sport Fish Restoration Program : grants awarded to the S

United States. Department of the Interior. Office of Inspector General, author.
Washington, DC : Office of Inspector General, U.S. Department of the Interior, 2020. 2020

U.S. Geological Survey programs in Colorado.

[Reston, Va.?] : U.S. Dept. of the Interior, U.S. Geological Survey, [1996?] 1996

The union of Revolving Loan Funds Colorado Coalition, Colorado.

[Washington, D.C.] : U.S. Environmental Protection Agency, Solid Waste and Emergency Response, [2005] 2005

Upper Cretaceous and Tertiary formations of the western part of the San Juan Basin, Colorado and New

Reeside, John B. (John Bernard), 1889-1958, author.
Washington : Department of the Interior, United States Geological Survey, 1924. 1924