Mine detail: Crater Mountain

Previously called 'Needle Creek Porphyry'

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Location

Lat / long:

44.0318, -109.6381

Resource

Primary:	Molybdenum, Copper
Secondary:	Lead, Zinc, Silver
Tertiary:	Gold
Ore:	Chalcopyrite, Pyrite, Galena, Sphalerite, Tetrahedrite, Arsenopyrite
Gangue:	Biotite, Calcite, Dolomite, Epidote, Muscovite, Quartz, Siderite
Orebody form:	HYDROTHERMAL STOCK, DISSEMINATED; HYDROTHERMAL VEIN; SUPERGENE ENRICHMENT
Discovery year:	1893

Production

Operation type:	Underground
Deposit type:	Porphyry Cu
Development status:	Prospect

Geology

Host rock:	Needle Mountain Granodiorite, Crater Mountain Dacite , dikes
Host type:	Granodiorite,Dacite,Andesite

References

DEP	10400361
Reference	{Deposit:: FISHER, F.S., 1972, USGS BULLETIN 1332-C}{Geology:: Hausel, W. D., 1997, Copper, Lead, Zinc, Molybdenum, and Associated Metal Deposits of Wyoming: Wyoming State Geological Survey, Bull 70, 229 p.}
Reporter	W. D. Heran