Mine detail: Falcon Mine

Previously called 'AmericaFlynnGodetLillianLittleIsabelJob CooperNutmegYellow Jacket, MS 364Grand View, MS 383Nora Lilly, MS 1010Ben HarrisonIngersoll, MS 413Hope, MS 939Cross, MS 940Pittsburgh, MS 941Falcon, MS 2151Dayton, MS 2540Last Chance, MS 8622Dayton No. 2, MS 11636Unpatented Claims: ArtieAmazonAlmaFateFrancesGrand View GroupPatented Claims: Alma Mater No. 2, MS 349Phoenix, MS 362Pelican, MS 363Major, MS 384'

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Location

Lat / long:

37.69612, -108.02315

Resource(M)

Primary:	Zinc, Silver, Lead
Secondary:	Copper, Gold
Tertiary:	Manganese
Ore:	Chalcopyrite, Pyrite, Sphalerite
Gangue:	Calcite, Chlorite, Quartz, Tremolite
Discovery year:	1877

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1880
Last production ended:	1949

Geology

Host rock:	Hermosa Formation;Uncompahgre Quartzite
Host type:	Quartzite,Shale,Sandstone,Limestone
Associated rock:	Hornblende Latite Porphyry
Associated type:	Latite
Structure:	San Juan Uplift, Paradox Basin, Rico Dome, Smelter Fault, Last Chance Fault, Yellow Jacket Fault, Nellie Bly Fault
Tectonic:	Central Cordillera (Southern Rocky Mtns)
Alteration processes:	Oxidation Of Galena To Cerussite

References

MRDS	D010767
DEP	10014124
Reference	{Deposit:: RANSOME, F.L., 1901, THE ORE DEPOSITS OF THE RICO MOUNTAINS, COLORADO: USGS 22D ANN. REPT., PT. 2, P. 375-379.}{Deposit:: MCKNIGHT, E.T., 1974, GEOLOGY AND ORE DEPOSITS OF THE RICO DISTRICT, COLORADO: USGS PROF. PAPER 723, P. 91-92.}{Deposit:: PRATT, W.P., AND OTHERS, 1969, GEOLOGIC MAP OF THE RICO QUADRANGLE, DOLORES AND MONTEZUMA COUNTIES, COLORADO: USGS}{Deposit:: CROSS, WHITMAN, AND RANSOME, F.L., 1905, DESCRIPTION OF THE RICO QUADRANGLE: USGS FOLIO 130.}{Deposit:: BLM MINERAL SURVEYS MS 349, 362, 363, 364, 383, 384, 413, 939, 941, 1010, 2151, 2540, 8622, 11636}{Deposit:: COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.}{Production:: COLORADO DIV. MINES ANNUAL OPERATOR REPTS.}
Reporter	Schwochow, Stephen D.