South Dakota · Pennington County
Past Producer
Gap Lode
Pennington County, South Dakota, United States
Mica
Feldspar
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USGS source ↗
Commodities
Primary
Mica
Tertiary
Feldspar
Commodity type
N
Economic & production
Development status
Past Producer
Identification
Deposit ID
10251457
Region
NA
Data score
D
Coordinates
43.86556, -103.55996
References
USBM STAFF,REG V,INFO.CIRC.7707,1955,P.72