Mine detail: Cimarron District

Previously called 'Silver Jack, MS 20073Roscoe Conkling, MS 1697Good Enough Extension, MS 13896Patented ClaimsGovernment Stamp Lode, MS 2353Pay Day Placer, MS 9779Phil Sheridan, MS 9780Good Enough, MS 13896Golden Eagle, MS 9781'

Location:	Hinsdale County, Colorado, United States, North America
Lat / long:	38.11472, -107.47953
dep_id:	10014690
mrds_id:	D011575
Commodity type:	metallic
Major mineral:	Silver, Lead, Gold
Operation type:	Unknown
Production size:	Small ammount of material produced
Development status:	Past Producer
ore:	Pyrite
gangue:	Limonite
alteration:	Propylitization, Argillization, Silicification, Pyritization
ore_ctrl:	Plugs And Radiating Dikes From Precaldera Volcano
Reporter:	Schwochow, Stephen D.
hrock_type:	Monzonite,Rhyodacite,Andesite
arock_unit:	Early Intermediate-Composition Lavas And Related Rocks--Intrusive Rocks (Monzonite And Monzonite Porphyry);Early Intermediate-Composition Lavas And Related Rocks--Intrusive Rocks (Andesite And Rhyodacite Porphyries);Early Intermediate-Composition Lavas And Related Rocks--Lava Flows;Early Intermediate-Composition Lavas And Related Rocks--Cone Breccias
arock_type:	Monzonite,Rhyolite,Rhyodacite,Quartz Latite,Andesite
Structure:	San Juan Volcanic Field, San Juan Depression, San Juan-Uncompahgre Calderas, Lake City Caldera, Cimarron Volcano
tectonic:	Central Cordillera (Southern Rocky Mtns)
yr_lst_prd:	1931
References:	Deposit:: LIPMANM P.W., 1976, GEOLOGIC MAP OF THE LAKE CITY CALDERA AREA, WESTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-962. Deposit:: LIPMAN, P.W., AND OTHERS, 1973, REVISED VOLCANIC HISTORY OF THE SAN JUAN, UNCOMPAHGRE, SILVERTON, AND LAKE CITY CALDERAS IN THE WESTERN SAN JUAN MOUNTAINS, COLORADO: USGS JOUR. RESEARCH, V. 1, NO. 6, P. 627-642. Deposit:: STEVEN, T.A., AND LIPMAN, P.W., 1976, CALDERAS OF THE SAN JUAN VOLCANIC FIELD, SOUTHWESTERN COLORADO: USGS PROF. PAPER 958, P. 10-16. Deposit:: COLORADO DIV. MINES INF. REPTS. Deposit:: BLM MINERAL SURVEYS MS 1697, 2353, 9779, 9780, 9781, 13896, 20073 Deposit:: LIPMAN, P.W., AND OTHERS, 1976, MULTIPLE AGES MID-TERTIARY MINERALIZATION AND ALTERATION IN THE WESTERN SAN JUAN MOUNTAINS, COLORADO: ECON. GEOLOGY, V. 71, NO. 3, P. 571-588. Deposit:: HON, KEN, AND MEHNERT, H.H., 1983, COMPILATION OF REVISED AGES OF VOLCANIC UNITS IN THE SAN JUAN MOUNTAINS, COLORADO--RECALCULATED K-AR AGE DETERMINATIONS USING IUGS CONSTANTS: USGS OPEN-FILE REPT. OFR-83-668. Deposit:: STEVEN, T.A., AND OTHERS, 1977, MINERAL RESOYRCES OF STIDY AREAS CONTIGUOUS TO THE UNCOMPAHGRE PRIMITIVE AREA, SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS BULL. 1391-E, P. 36-37, 85-86, PLS. 1, 3.