South Dakota · Pennington County
Past Producer
Keystone Mine
Pennington County, South Dakota, United States
Gold
Silver
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USGS source ↗
Commodities
Primary
Gold
Tertiary
Silver
Commodity type
M
Economic & production
Development status
Past Producer
Identification
Deposit ID
10129376
Region
NA
Data score
D
Coordinates
43.89856, -103.37836
References
USBM STAFF,REG.V,INFO.CIRC.7707,1955,P.94SKILLINGS MINING REVIEW. "HARRISON WESTERN COMPLETESKEYSTONE, S.D., DRILLING PROGRAM." JAN. 16, 1993. P. 37.