Mine detail: Big Forty

Previously called ''

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Location

Lat / long:

39.71169, -105.58839

Resource(M)

Primary:	Gold
Tertiary:	Silver
Ore:	Pyrite
Gangue:	Quartz

Production

Operation type:	Underground
Development status:	Past Producer

Geology

References

MAS	80190246
DEP	10263821
Reference	{Deposit:: USGS PP 319, p. 50}{Deposit:: USGS PP 63, p. 376}
Reporter	Intermountain Field Operations Center (IFOC)