Montana · Lewis and Clark County
Unknown
Porter Bros. Corporation
Lewis and Clark County, Montana, United States
Gold
Silver
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USGS source ↗
Commodities
Primary
Gold
Tertiary
Silver
Commodity type
M
Economic & production
Development status
Unknown
Identification
Deposit ID
10197090
Region
NA
Data score
D
Coordinates
46.6246, -112.04058
References
MBM G MEM 31, 1949 P.55600 ACRE PLACER GROUND 1.5 MI. N. OF HELENA