Now showing items 1-10 of 35
Report on the Finch group of mines situated in Magnolia Mining District, Boulder County, Colorado
Contributor:Rule, William M.; Finch, E. M.; Finch, D. L.
Mining lease and option on property of Frank Heizelman : Crescent lode, Grand Union lode and St. Marys lode all being survey no. 5327 in the Central Mining District in the county of Boulder and the state of Colorado
Contributor:Heizelman, Frank; Smith, A. B.; Alberts, George B., Jr.; Reinhart, Francis
Report on the Ni Wot Mining Company (Big Five), Boulder County : for the year 1900
Contributor:Colorado. Bureau of Mines; United States. Bureau of Mines
Advisory report on future exploration and development work : Emancipation Mine, Boulder, Colorado
Contributor:Prommel, H. W. C. (Harold W. C.)
Brief statement concerning the Zephyr and Cyclone mining claims
Contributor:Armstrong, F. C.
Brief statement concerning property of the Tanner Group of tungsten claims
Contributor:Tanner, W. L.
Report on the the [sic] Albion group of mines, Ward, Boulder County
Contributor:Holden, George B.
Report on the the [sic] Willow Run claim : Boulder County
Contributor:Hamilton, Claude C.; Camp, A. M.
Report of properties of the North American Mining Co., situated in Clear Creek, Gilpin, Boulder & San Juan Counties, Colorado
Contributor:Sanderson, H. S.
Covers the following mining districts in Colorado: Idaho Mining District, Jackson Mining District, Payne's Bar Mining District, Spanish Bar Mining District, Virginia Mining District, Yankee Hill Mining District, Russell ...
Report on the Comstock group of mines, property of the Pandora Metals, Inc.
Contributor:Fair, Fred A.