South Dakota · Lawrence County
Occurrence
Portland
Lawrence 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
Occurrence
Identification
Deposit ID
10129179
Region
NA
Data score
D
Coordinates
44.34416, -103.84448
References
US BUREAU OF MINES STAFF,1954,REG V,1 INFO CIRCULAR 7688 P 5SHAPIRO & GRIES,1970,USGS HEAVY METALS PROGRAM CONTRACT #14--10650 P 73BALD MOUNTAIN MINING COMPANY-OWNERTROJAN MINING COMPANY-OWNER