Mine detail: Lucky Four Mine

Previously called 'Patented Claims: Lucky Four, MS 19336Lucky Four No. 2, MS 19336Delphic, MS 19336Dead Pine, MS 19336Hesperain, MS 19336Iron King, MS 19336'

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Location

Lat / long:

37.36751, -108.07037

Resource(M)

Primary:	Gold, Silver
Secondary:	Copper, Lead
Tertiary:	Zinc
Ore:	Galena, Sphalerite
Gangue:	Barite, Quartz

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1907
Last production ended:	1914

Geology

Host rock:	Dolores Formation;Pony Express Limestone Member Of Wanakah Formation
Host type:	Mudstone,Sandstone,Limestone
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:	Oxidation Of Pb Sulfide

References

MRDS	D010837
DEP	10014177
Reference	{Deposit:: ECKEL, E.B., AND OTHERS, 1949, GEOLOGY AND ORE DEPOSITS OF THE LA PLATA DISTRICT, COLORADO: USGS PROF. PAPER 219, P. 69-70, 140.}{Deposit:: BLM MINERAL SURVEY MS 19336}{Production:: ECKEL AND OTHERS, 1949, P. 140 (AS COMPILED FROM USGS/USBM RECORDS)}
Reporter	Schwochow, Stephen D.