Mine detail: Little Annie Mine

Previously called 'Claim: Little Annie'

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Location

Lat / long:

39.12916, -106.82562

Resource(M)

Primary:	Silver, Lead
Secondary:	Zinc
Ore:	Polybasite, Silver, Sphalerite
Gangue:	Barite, Calcite, Quartz
Orebody form:	IRREGULAR
Discovery year:	1882

Production

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

Geology

Host rock:	Belden Formation;Quartz Porphyry
Host type:	Shale
Structure:	Sawatch Uplift, Central Colorado Trough, Piceance Basin, White River Uplift, Elk Uplift, Castle Creek Fault Zone, Annie Fault, Hope Fault, Winnie Fault
Tectonic:	Central Cordillera (Southern Rocky Mtns); Colorado Platform

References

MRDS	D009640
DEP	10101809
Reference	{Deposit:: SPURR, J. E., 1898, GEOLOGY OF THE ASPEN DISTRICT, COLORADO: USGS MON. 31, P. 205, PL. 43}{Deposit:: BRYANT, BRUCE, 1971, GEOLOGIC MAP OF THE ASPEN QUADRANGLE, PITKIN COUNTY, COLORADO: USGS MAP GQ-933}{Deposit:: BRYANT, BRUCE, 1972, MAP SHOWING MINES, PROSPECTS, AND AREAS OF SIGNIFICANT SILVER, LEAD, AND ZINC PRODUCTION IN THE ASPEN QUADRANGLE, PITKIN COUNTY, COLORADO: USGS MAP I-785-D}{Deposit:: KNOPF, ADOLPH, 1926, RECENT DEVELOPMENTS IN THE ASPEN DISTRICT, COLORADO: USGS BULL. 785 P. 1-28}{Deposit:: BRYANT, BRUCE, 1979, GEOLOGY OF THE ASPEN 15-MINUTE QUADRANGLE, PITKIN AND GUNNISON COUNTIES, COLORADO: USGS PROF. PAPER 1073, P. 108-109.}{Deposit:: BLM MINERAL SURVEY MS 2228}{Production:: COLO. DIV. MINES ANN. OPERATORS REPTS.}
Reporter	Schwochow, Stephen D.