Mine detail: Monon Mine

Previously called 'Monon Hill Mine'

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Location

Lat / long:

37.84445, -106.95812

Resource(M)

Primary:	Silver, Lead
Secondary:	Copper, Gold
Tertiary:	Zinc
Ore:	Chalcopyrite, Galena, Sphalerite
Gangue:	Barite, Calcite, Pyrite
Orebody form:	LENSE, WEDGE
Discovery year:	1914

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1914
Last production ended:	1941

Geology

Host rock:	Creede Formation;Campbell Mtn. Member Of Bachelor Mtn. Rhyolite
Host type:	Alluvium,Sandstone
Associated rock:	Campbell Mtn. Member Of Bachelor Mtn. Rhyolite
Associated type:	Rhyolite
Structure:	San Juan Volcanic Field; La Garita, Creede, And Bachelor Calderas, Local Normal Faulting In Volcanics Underlying Creede Fm, Between Alpha-Corsair And Bulldog Mtn. Fault Zones And Related To Subsidence/Resurgence Of Bachelor And Creede Cauldrons (Creede Graben).
Tectonic:	Central Cordillera (Southern Rocky Mtns)
Alteration processes:	Erratic Silicification

References

MRDS	D007946
DEP	10012356
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}{Deposit:: LARSEN, E.S., 1929, RECENT MINING DEVELOPMENTS IN THE CREEDE DISTRICT, COLORADO: USGS BULL. 811-B.}
Reporter	Schwochow, Stephen D.