Mine detail: Sand Gulch Prospect No. 2

Previously called ''

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Location

Lat / long:

38.42029, -105.6578

Resource(N)

Primary:	Stone, Crushed/Broken
Ore:	Gold, Hematite, Silver, Sphalerite
Gangue:	Feldspar, Quartz

Production

Operation type:	Surface
Production size:	Small
Development status:	Prospect

Geology

Host rock:	Migmatitic Gneiss
Host type:	Gneiss
Associated rock:	Granodiorite Of Boulder Creek Age
Associated type:	Quartz Monzonite,Diorite,Pegmatite,Granite
Structure:	Northern Wet Mountains, Canon City Embayment, Thirtynine Mile Volcanic Field, Cotopaxi Fault
Tectonic:	Central Cordillera (Southern Rocky Mountains)
Alteration processes:	Altered Biotite Gneiss; Kaolinization

References

MRDS	D009674
DEP	10013402
Reference	{Deposit:: COKER, R. J., 1982, MINERAL RESOURCES OF THE ARKANSAS CANYON PLANNING UNIT WITH SPECIAL EMPHASIS ON THE FORMER GRAPE CREEK WILDERNESS STUDY AREAS AND THE MCINTYRE HILLS WILDERNESS STUDY AREA: US BLM MINERAL REPORT, P. 100}{Deposit:: TAYLOR, R. B., SCOTT, G. R., WOBUS, R. A. AND EPIS, R. C., 1975, RECONNAISSANCE GEOLOGIC MAP OF THE COTOPAXI 15-MINUTE QUADRANGLE, FREMONT AND CUSTER COUNTIES, COLORADO: USGS MAP I-900, 1: 62,500.}
Reporter	Collins, Donna B., Keller, John W.