Montana · Jefferson County
Producer
Portal Mine
Jefferson County, Montana, United States
Silver
Gold
Copper
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USGS source ↗
Commodities
Primary
Silver, Gold, Copper
Commodity type
M
Deposit
Deposit type
Unknown
Deposit size
Y
Materials
Ore minerals
Gold
Geology
Structure
Boulder Batholith
Economic & production
Development status
Producer
Identification
Deposit ID
10019619
MRDS ID
DC10985
Region
NA
Data score
D
Coordinates
46.34407, -112.11032
References
ROBY, 1960, MONT. BM & GEOL., BULL. 16, P. 110, PL