Mine detail: Exchequer Tunnel

Previously called ''

<< Back to the map

Location

Lat / long:

37.86723, -106.92979

Resource(M)

Primary:	Silver, Lead, Gold
Tertiary:	Copper, Manganese
Ore:	Silver
Gangue:	Amethyst, Barite, Limonite, Quartz

Production

Operation type:	Unknown
Production size:	None
Development status:	Occurrence

Geology

Host rock:	Campbell Mtn. Member Of Bachelor Mtn. Rhyolite
Host type:	Rhyolite
Associated rock:	Campbell Mtn. Member Of Bachelor Mtn. Rhyolite;Willow Creek Member Of Bachelor Mtn. Rhyolite
Associated type:	Rhyolite
Structure:	San Juan Volcanic Field; La Garita, Creede, And Bachelor Calderas, Creede Graben, Amethyst Fault Zone
Tectonic:	Central Cordillera (Southern Rocky Mtns)
Alteration processes:	Copper Staining

References

MRDS	D007951
DEP	10012359
Reference	{Deposit:: EMMONS, W.H., AND LARSEN, E.S. 1923, GEOLOGY AND ORE DEPOSITS OF THE CREEDE DISTRICT, COLORADO: USGS BULL. 718, 198 P.}{Deposit:: STEVEN, T.A., AND RATTE, J.C., 1965, GEOLOGY AND STRUCTURAL CONTROL OF ORE DEPOSITION IN THE CREEDE DISTRICT, SAN JUAN MOUNTAINS, COLORADO: USGS PROF. PAPER 487, 90 P.}{Deposit:: LINDEMANN, J.W., AND OTHERS, EDS., 1981, FIELD TRIP NOTES, CREEDE MINING DISTRICT, SAN JUAN VOLCANIC PROVINCE, COLORADO: DENVER REGIONAL EXPLORATION GEOLOGISTS SOC. GUIDEBOOK}
Reporter	Schwochow, Stephen D.