South Dakota · Pennington County
Producer
Bismark-Ida Florence Groups
Pennington County, South Dakota, United States
Gold
Silver
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USGS source ↗
Commodities
Primary
Gold, Silver
Commodity type
M
Deposit
Deposit size
S
Workings
Underground
Ore control
Shear Zone, Diorite Dikes
Materials
Ore minerals
Gold, Silver
Gangue
Hornblende, Magnesite, Pyrite, Pyrrhotite, Quartz, Siderite, Sphalerite
Geology
Associated rock
Diorite
Economic & production
Development status
Producer
First production
1893
Identification
Deposit ID
10110042
MRDS ID
SD02510
Region
NA
Data score
B
Coordinates
43.90552, -103.43
References
USBM INFO CIRC 7707, P. 96-97.SDSMT BULL 18USBM INFO CIRC 7707, P. 97