Mine detail: Alton Tunnel

Previously called 'Pine Grove'

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Location

Lat / long:

39.96805, -105.5392

Resource(M)

Primary:	Gold
Tertiary:	Silver
Other material:	Chalcopyrite, Galena, Gold, Pyrite, Silver, Sphalerite
Discovery year:	1900

Production

Operation type:	Underground
Development status:	Past Producer
First production started:	1909

Geology

References

MRDS	DC03394
MAS	80130016
DEP	10214205
Reporter	Melton, Greg, Unknown