	*Smith, Roscoe Maurice (1976) Mineral resources of Elko County, Nevada. Open-File Report* Vol. 1976 (76-56) US Geological Survey doi:10.3133/ofr7656**	Report (issue)
	INTERIOR GEOLOGICAL SURVEY MINERAL RESOURCES OF ELKO COUNTY, NEVADA By Roscoe M. Smith Prepared in cooperation...Acknowledgment -Mining districts Commodities Production Descriptions of mining districts . Alder district-Aura district...district -Beaver district Black Mountain district Bootstrap district Burner district Burns Basin district--...-Carlin district Cave Creek district ----Charleston district_--Coal Mine district~ Contact district Cornucopia...Cornucopia district - -Corral Creek district - Decoy district Delano district Delker districtDivide district
	*Eckel, E.B. (1949) Geology and ore deposits of the La Plata district, Colorado. Professional Paper* 219. US Geological Survey doi:10.3133/pp219**	Report (issue)
	Geology and Ore Deposits of the La Plata District Colorado By EDWIN B. ECKEL with sections by J. S. WILLIAMS...cooperation with the Colorado State Geological Survey Board and the Colorado Metal Mining Fund UNITED STATES...the Animas River. _ _ _ Lithology in La Plata district _ _______ Permian system____________________________...part of district -_ _. ..____'_ Northwestern part of district--------Southern part of district. ______...region as a whole __________________ La Plata district _ . ___ _ ____-____ _ 22 23 23 24 24 26 26 26
	*Valentine, Grant M., Huntting, Marshall T. (1960) Part II - Metallic Minerals, in Inventory of Washington Minerals. Vol II. Bulletin 37, Washington Geological Survey.*	Report (Issue volume)
	these card catalogues would be as useful to the mining industry as they have proved to be to the Division...and expense involved are justified and that the mining industry will find that having this material readily...During the 90 years or more that prospecting and mining have been active, a vast amount of information...extensively to the fund of published data. Also, mining journals and periodicals, many of which are no................................ . Copper-Stevens County ....................... . Lode gold ..........
	*(1892) The Mining Directory and Reference Book of the United States, Canada and Mexico.*	Book
	THE MINING DIRECTORY. ^t. * P. THE - Bvffl ALUS MANUFACTURERS OF REYNOLDS CORLISS ENGINES GIRDER... LEGISLATIVE ASSEMBLY, BRITISH COLUMBIA. THE MINING DIRECTORY. GATES ROCK -H oj # ORE BREAKER...Gates Standard Breaker, with Main Shaft and ' MINING MACHINERY CRUSHERS and PULVERIZERS. IMPROVED CORNISH... Boston. London. Eng. St, I CHICAGO. THE MINING DIKECTOEY. E. H- SARGENT & OHIOAGO, CO. ILL... ALSO SOLE MANUFACTURERS OF THl Jeffrey Coal Mining DRILLS, f Machines nei MOTOR CARS, Operated

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Stephanite from Ruby King, Ruby Mining District (Elk Mountain Mining District; Irwin Mining District), Gunnison County, Colorado, USA

Stephanite from
Ruby King, Ruby Mining District (Elk Mountain Mining District; Irwin Mining District), Gunnison County, Colorado, USA