Colorado · Clear Creek County
Past Producer
Mammoth Tunnel
Clear Creek County, Colorado, United States
Gold
Silver
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USGS source ↗
Commodities
Primary
Gold
Tertiary
Silver
Commodity type
M
Materials
Ore minerals
Pyrite, Sphalerite, Galena
Gangue
Quartz
Economic & production
Development status
Past Producer
Identification
Deposit ID
10190155
Region
NA
Data score
D
Coordinates
39.72582, -105.57503
References
USGS PP 319, p. 72