South Dakota · Pennington County
Occurrence
Grand Island Group
Pennington County, South Dakota, United States
Gold
Silver
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USGS source ↗
Commodities
Primary
Gold, Silver
Commodity type
M
Deposit
Deposit type
Vein
Deposit size
N
Workings
Underground
Ore control
Shear Zone
Materials
Ore minerals
Gold, Pyrite, Pyrrhotite, Silver
Gangue
Quartz
Geology
Associated rock
Diorite · Diorite
Economic & production
Development status
Occurrence
Identification
Deposit ID
10010770
MRDS ID
D004737
Region
NA
Data score
C
Coordinates
43.90524, -103.42973
References
U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707