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Development of industrial minerals in Colorado

Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2011. 2011

Economic geology of the Georgetown quadrangle (together with the Empire district) Colorado

Spurr, Josiah Edward, 1870-1950 author.
Washington : Department of the Interior, United States Geological Survey, 1908. 1908

Geology and ore deposits near Lake City, Colorado

Irving, J. D. (John Duer), 1874-1918 author.
Washington, D.C. : Department of the Interior, United States Geological Survey, 1911. 1911

Geology and ore deposits of the Creede district, Colorado

Emmons, William H. (William Harvey), 1876-1948, author.
[Washington, D.C.] : Department of the Interior, United States Geological Survey, 1923. 1923

Gold placers and their geologic environment in northwestern Park County, Colorado

Singewald, Q. D. (Quentin Dreyer), 1902-1987, author.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1950. 1950

Gold, silver, copper, lead and zinc in Colorado : (mine report)

Henderson, Charles W. (Charles William), 1885-
Washington : G.P.O., 1943. 1943

Gunnnison and San Juan A late and reliable description of the wonderful gold and silver belts and ir

Strahorn, Robert E. (Robert Edmund), 1852-1944
Omaha : The New West, 1881. 1970

Locatable mineral reports for South Dakota and Colorado, provided to the U.S. Forest Service in fisc

Denver, CO : U.S. Dept. of the Interior, U.S. Geological Survey, 2001-2002. 2002

The mines of Colorado

Hollister, Ovando James, 1834-1892.
Springfield, Mass. : S. Bowles & Company, 1867. 1970

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

Henderson, Charles W. (Charles William), 1885-
Washington : G.P.O., 1926. 1926

Mining year book.

Denver, Colo. : Colorado Mining Association, 1933- 1933

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

Vanadium deposits of Colorado and Utah : a preliminary report

Fischer, R. P. (Richard Philip), 1910-1991 author.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1942. 1942

Mineral resources of the American Flats Wilderness Study Area, Ouray and Hinsdale Counties, Colorado

Hon, Ken, author.
[Reston, Va.] : Department of the Interior, U.S. Geological Survey, 1987. 1987

Mineral resources of the Beaver Creek Wilderness Study Area, El Paso, Fremont, and Teller Counties,

Lindsey, David A., author.
[Reston, Va.] : Department of the Interior, U.S. Geological Survey, 1986. 1986