South Dakota · Custer County
Prospect
Formoso Lode
Custer County, South Dakota, United States
Mica
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USGS source ↗
Commodities
Primary
Mica
Commodity type
N
Economic & production
Development status
Prospect
Identification
Deposit ID
10250716
Region
NA
Data score
D
Coordinates
43.87636, -103.47366
References
PAGE,L.R.1953,USGS PROF PAPER 247 PP 118-119USBM STAFF,1955 REG V IC 7702 P 72