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Prospecting
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Geology

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1.
Geophysical investigations at Caribou, Colo
Author
Heiland, C. A. (Carl August), 1899-
Published
Washington, D.C. : U.S. Dept. of Commerce, Bureau of Mines : U.S. Govt. Print. Off., 1929.
Online
Online book
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
2.
Geology and gold deposits of the Cripple Creek district, Colorado, by Waldemar Lindgren and Frederick Leslie Ransome. [U.S. Geological Survey Professional Paper No. 54. Series A, Economic Geology, 76. Series B, Descriptive Geology, 95.]
Author
United States. Congress. House
Published
Washington, DC, 1906
Online
Online text
Location
Yale Internet Resource >> None
Format
Books / Online
3.
Memorial of the General Assembly of Colorado. July 2, 1897. -- Ordered to be printed
Author
United States. Congress. Senate
Published
Washington, DC, 1897
Online
Online text
Location
Yale Internet Resource >> None
Format
Books / Online
4.
Mineralogy and geology of the vanadium-uranium deposit of the Rifle and Garfield mines, Garfield County, Colorado
Author
Botinelly, Theodore, 1916-
Online
Online book
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online