Grand Island Group, Keystone Gold District, Pennington Co., South Dakota, USA
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707,1955,P.98
Commodities (Major) - Silver, Gold
Deposit Type: Vein
Development Status: Occurrence
5 entries listed. 5 valid minerals.
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Locality Updated: Copper Queen Mine, Lodgepole, Tulare Co., California, USAFrom Chester S. Lemanski, Jr., 13th Dec 2013 16:49:02