Commodities
PrimarySilver
SecondaryZinc, Lead, Copper
Commodity typeM
Deposit
Deposit typeVein
Model85: Polymetallic veins
Deposit sizeS
WorkingsUnderground
Ore controlFault Contact
Materials
Ore mineralsGalena, Sphalerite
GanguePyrite
Geology
Host rockTrachyte
Associated rockTrachyte · Game Ridge Trachyte
StructureRosita Volcanic Center, Wet Mtns, On Nellie Fault
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationWeak To Moderate Argillization
Economic & production
Development statusPast Producer
Discovery year1895
Identification
Deposit ID10012300
MRDS IDD007854
Alternate namesSleeping Pet
RegionNA
Data scoreB
Coordinates38.11445, -105.32113
References
CROSS, WHITMAN, 1896, GEOLOGY OF SILVER CLIFF AND THE ROSITA HILLS, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 263-403EMMONS, S.F., 1896, THE MINES OF CUSTER COUNTY: USGS 17TH ANN. REPORT, PT 2, P. 405-472.SHARP, W.M., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAP I-1081.Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.