Montana · Madison County
Past Producer
Surprise Mine
Madison County, Montana, United States
Gold
Silver
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USGS source ↗
Commodities
Primary
Gold
Tertiary
Silver
Commodity type
M
Economic & production
Development status
Past Producer
Identification
Deposit ID
10270202
Region
NA
Data score
D
Coordinates
45.8091, -111.92306
References
USGS BULL 574, 1914, P100.