Mine detail: Balfour Mines

Previously called ''

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Location

Lat / long:

38.92167, -105.69281

Resource(M)

Primary:	Gold
Secondary:	Uranium
Ore:	Gold
Gangue:	Biotite, Hornblende, Pyroxene
Orebody form:	IRREGULAR SHEAR ZONE

Production

Operation type:	Unknown
Production size:	Small
Development status:	Producer

Geology

Host type:	Volcanic Breccia (Agglomerate),Andesite
Associated rock:	Lower Member, Thirtynine Mile Andesite
Associated type:	Andesite
Structure:	Thirtynine Mile Volcanic Field, Front Range, Currant Creek Fault Zone, Nw-Trending Syncline
Tectonic:	Central Cordillera, Southern Rocky Mountains

References

MRDS	D004843
DEP	10107933
Reference	{Deposit:: USBM MAS OCT 1976 FILE}{Deposit:: EPIS, R.C., WOBUS, R.A. AND SCOTT, G.R., 1979, GEOLOGIC MAP OF THE GUFFEY QUADRANGLE, PARK COUNTY, COLORADO: USGS MAP I-1180, 1:62,500.}
Reporter	Foord, Suzann C, Collins, Donna B.