Montana · Lewis and Clark County
Past Producer
Eureka Mine
Lewis and Clark County, Montana, United States
Silver
Lead
Gold
Zinc
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USGS source ↗
Commodities
Primary
Silver, Lead
Secondary
Gold, Zinc
Commodity type
M
Deposit
Deposit size
S
Workings
Underground
Materials
Ore minerals
Galena, Gold, Sphalerite
Gangue
Pyrite, Quartz, Siderite
Geology
Host rock
Quartz Monzonite
Associated rock
Quartz Monzonite · Butte Quartz Monzonite (Boulder Batholith)
Structure
Boulder Batholith, Red Mountain Fault
Economic & production
Development status
Past Producer
First production
1865
Identification
Deposit ID
10015924
MRDS ID
DB02217
Region
NA
Data score
B
Coordinates
46.47323, -112.23838
References
USGS PP 428, P. 57.USGS BULL 842, P. 251.