Montana · Jefferson County
Occurrence
Portal Mine
Jefferson County, Montana, United States
Gold
Copper
Silver
⌖ Show on map
USGS source ↗
Commodities
Primary
Gold
Tertiary
Copper, Silver
Commodity type
M
Economic & production
Development status
Occurrence
Identification
Deposit ID
10294934
Region
NA
Data score
D
Coordinates
46.3421, -112.10918
References
MBMG BULL. 16, 1960.