Colorado · Custer County
Past Producer

Transylvania Tunnel

Custer County, Colorado, United States
SilverLeadZinc
⌖ Show on mapUSGS source ↗
Commodities
PrimarySilver
SecondaryLead, Zinc
Commodity typeM
Deposit
Deposit typeVein
Deposit sizeS
WorkingsUnderground
Ore controlMineralized Fissures Along Extension Of Rosita Fault, Trachyte Body
Materials
Ore mineralsGalena, Sphalerite
GangueKaolin
Geology
Host rockVolcanic Breccia (Agglomerate),Andesite
Associated rockTrachyte,Andesite · Rosita Andesite;Game Ridge Trachyte
StructureRosita Volcanic Center, Wet Mtns, Rosita Fault, Ne-Trending Fault
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationArgillization
Economic & production
Development statusPast Producer
Discovery year1895
Identification
Deposit ID10012314
MRDS IDD007870
RegionNA
Data scoreB
Coordinates38.10557, -105.33779
References
CROSS, WHITMAN, 1896, GEOLOGY OF SILVER CLIFF AND THE ROSITA HILLS, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 263-403.SHARP, W.M., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAP I-1081.