Mine detail: Bessie G. Mine

Previously called 'Bessie G. ExtensionBessie G., MS 2055, Lady Douglass, MS 2378ThrereseBeth Nos. 1-12Egyptian Queen MinePatented Claims: Martha, MS 1721Wray, MS 2379North Star, MS 2380Morning Star, MS 2381Rebecca, MS 2382Unpatented Claims: MargoMargo No. 2,4,5Road Runner Nos. 1-8Hardway Smith Nos. 1-12Shalkao Nos. 1-12Silver Saddle Nos. 1-32'

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Location

Lat / long:

37.43418, -108.00953

Resource(M)

Primary:	Gold, Silver
Secondary:	Copper
Tertiary:	Tellurium, Lead, Zinc, Mercury, Antimony
Ore:	Chalcopyrite, Cinnabar, Galena, Gold, Pyrite, Sphalerite, Tetrahedrite, Silver
Gangue:	Dickite, Quartz, Sericite
Orebody form:	Tabular

Production

Operation type:	Underground
Deposit type:	Vein
Production size:	Small
Development status:	Past Producer
First production started:	1880
Last production ended:	1987

Geology

Host rock:	Dolores Formation
Host type:	Mudstone,Shale,Sandstone
Associated rock:	Porphyritic Rocks--Diorite-Monzonite Porphyry
Associated type:	Diorite
Structure:	San Juan Uplift, Four Corners Platform, La Plata Dome
Tectonic:	Central Cordillera (Southern Rocky Mtns)
Alteration processes:	Silicification; Sericitization

References

MRDS	D010803
DEP	10014153
Reference	{Deposit:: ECKEL, E.B., AND OTHERS, 1949, GEOLOGY AND ORE DEPOSITS OF THE LA PL PLATA DISTRICT, COLORADO: USGS PROF. PAPER 219, P. 73-76, 91-93.}{Deposit:: COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.}{Deposit:: BLM MINERAL SURVEYS MS 1721, 2055, 2378, 2379, 2380, 2381, 2382}{Deposit:: MINING RECORD, 9/7/83, 2/8/84}{Deposit:: BUREAU OF MINES OPENFILE REPORT MLA 2-92}{Production:: ECKEL AND OTHERS, 1949, P. 91 (AS COMPILED FROM MINT, USBM, AND PRIVATE RECORDS); COLORADO DIV. MINES ANNUA. OPERATOR REPTS.}
Reporter	Schwochow, Stephen D.