Mine detail: Enterprise Mine

Previously called 'Patented Claims: Snowflake, MS 5909Sun Up, MS 5910Bell, MS 5911, Enterprise, MS 5916Kitchen, MS 5917Ontario, MS 5923Eureka, MS 6285Song Bird, MS 6392Thompson, MS 6394Hiawatha, MS 6399'

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Location

Lat / long:

37.68362, -108.02148

Resource(M)

Primary:	Silver, Lead, Zinc
Secondary:	Gold, Copper
Tertiary:	Manganese
Ore:	Argentite, Chalcopyrite, Covellite, Gold, Malachite, Polybasite, Proustite, Sphalerite, Stephanite
Gangue:	Calcite, Quartz, Rhodochrosite, Rhodonite, Siderite
Orebody form:	TABULAR
Discovery year:	1887

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1887
Last production ended:	1929

Geology

Host rock:	Hermosa Formation
Host type:	Shale,Sandstone,Limestone,Evaporite
Associated rock:	Hornblend Latite Porphyry
Associated type:	Latite
Structure:	San Juan Uplift, Paradox Basin, Rico Dome
Tectonic:	Central Cordillera (Southern Rocky Mtns)
Alteration processes:	Silicification Of Sandstone To Orthoquartzite Near Porphyry Contact; Marbleization Of Limestone Near Porphyry Contacts; Silicification Of Blanket Breccia And Shale

References

MRDS	D010765
DEP	10014122
Reference	{Deposit:: MCKNIGHT, E.T., 1974, GEOLOGY AND ORE DEPOSITS OF THE RICO DISTRICT, COLORADO: USGS PROF. PAPER 723, P. 73-75.}{Deposit:: PRATT, W.P., AND OTHERS, 1969, GEOLOGIC MAP OF THE RICO QUADRANGLE, DOLORES AND MONTEZUMA COUNTIES, COLORADO: USGS}{Deposit:: RANSOME, F.L., 1901, THE ORE DEPOSITS OF THE RICO MOUNTAINS, COLORADO: USGS 22D ANN. REPT., PT. 2, P. 308-328.}{Deposit:: CROSS, WHITMAN, AND RANSOME, F.L., 1905, DESCRIPTION OF THE RICO QUADRANGLE: USGS FOLIO 130.}{Deposit:: RICKARD, T.A., 1895, VEIN STRUCTURE IN THE ENTERPRISE MINE: COLORADO SCI. SOC. PROC., V. 5, P. 123-130}{Deposit:: RICKARD, T.A., 1896, THE ENTERPRISE MINE, RICO, COLORADO: AIME TRANS., V. 26, P. 906-980.}{Deposit:: FARISH, J.B., 1892, ON THE ORE-DEPOSITS OF NEWMAN HILL, NEAR RICO, COLORADO: COLORADO SCI. SOC. PROC., V. 4, P. 151-164.}{Deposit:: BASTIN, E.S., 1922, SILVER ENRICHMENT IN THE SAN JUAN MOUNTAINS, COLORADO: USGS BULL. 735-D, P. 115}{Deposit:: COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.}{Deposit:: BLM MINERAL SURVEYS MS 5909, 5910, 5911, 5916, 5917, 5923, 6285, 6392, 6394, 6399}{Production:: COLORADO DIV. MINES ANNUAL OPERATOR REPTS. (SHAMROCK, ATLANTIC CABLE, AND ENTERPRISE MINES}
Reporter	Schwochow, Stephen D.