Mine detail: Ute-Ulay Mine

Previously called 'Ute-Ule MinePatented Claims: Ule, MS 147aUle Mill Site, MS 147bUte, MS 148Ule Extension, MS 1220John J. Crooke Placer, MS 1280Equator, MS 1366aEquator Mill Site, MS 1366bCuter, MS 12265Free Lance, MS 12265Mab, MS 12265Auric, MS 12265Maid of Henson, MS 12265Regulator, MS 12265Yankee Doodle, MS 12265Leadville, MS 12265Mayor of Leadville, MS 12265'

<< Back to the map

Location

Lat / long:

38.01972, -107.37591

Resource(M)

Primary:	Gold, Lead, Zinc, Silver
Secondary:	Copper
Tertiary:	Antimony, Manganese, Arsenic
Ore:	Chalcopyrite, Silver, Sphalerite
Gangue:	Ankerite, Barite, Calcite, Chalcedony, Dickite, Fluorite, Gypsum, Kaolinite, Magnetite, Quartz, Rhodochrosite, Sericite
Orebody form:	IRREGULAR, PINCH AND SWELL
Discovery year:	1871

Production

Operation type:	Unknown
Deposit type:	Vein
Production size:	Small
Development status:	Past Producer
First production started:	1874
Last production ended:	1967

Geology

Host rock:	Picayune Megbreccia Member Of Sapinero Mesa Tuff
Host type:	Volcanic Breccia (Agglomerate),Rhyolite
Associated rock:	Eureka Menber Of Sapinero Mesa Tuff;Intrusive Rocks--Porphyro-Aphanitic Rocks
Associated type:	Rhyolite,Andesite
Structure:	San Juan Volcanic Field, San Juan Depression, San Juan-Uncompahgre Calderas, Lake City Caldera
Tectonic:	Central Cordillera (Soythern Rocky Mtns)
Alteration processes:	Wallrock Silicification; Sericitization; Pyritization

References

MRDS	D011623
DEP	10087980
Reference	{Deposit:: IRVING, J.D., AND BANCROFT, HOWLAND, 1911, GEOLOGY AND ORE DEPOSITS NEAR LAKE CITY, COLORADO: USGS BULL. 478, P. 87-95.}{Deposit:: SLACK, J.F., 1980, MULTISTAGE VEIN ORES OF THE LAKE CITY DISTRICT, WESTERN SAN MOUNTAINS, COLORADO: ECON. GEOLOGY, V. 75, NO. 7, P. 963-991.}{Deposit:: LIPMAN, P.W., 1976, GEOLOGIC MAP OF THE LAKE CITY CALDERA AREA, WESTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-962.}{Deposit:: BROWN, W.H., 1926, THE MINERAL ZONES OF THE WHITE CROSS DISTRICT AND NEIGHBORING DEPOSITS IN HINSDALE COUNTY, COLORADO: MINES MAG., V. 15, NO. 11, P. 5-15.}{Deposit:: IRVING, J.D., 1905, ORE DEPOSITS IN THE VICINITY OF LAKE CITY, COLORADO: USGS BULL. 260, P. 78-84.}{Deposit:: LIPMAN, P.W., AND OTHERS, 1976, MULTIPLE AGES OF MID-TERTIARY MONERALIZATION AND ALTERATION IN THE WESTERN SAN JUAN MOUNTAINS, COLORADO: ECON. GEOLOGY, V. 71, NO. 3, P. 571-588.}{Deposit:: STEVEN, T.A. AND OTHERS, 1977, MINERAL RESOURCES OF STUDY AREAS CONTIGUOUS TO THE UNCOMPAHGRE PRIMITIVE AREA, SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS BULL. 1391-E, P. 82, 108-109.}{Deposit:: COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.}{Deposit:: BLM MINERAL SURVEYS MS 147A&B, 148, 1220, 1280, 1366A&B, 12265}{Production:: COLORADO DIV. MINES ANNUAL OPERATOR REPTS.}
Reporter	Schwochow, Stephen D.