Mine detail: Little Dollie Tunnel

Previously called 'Giles Mining and Milling CompanyGiles Mining CompanyGiles GroupCottonwood KingSilver King Mines Co.'

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Location

Lat / long:

40.62105, -111.59134

Resource(M)

Primary:	Copper
Secondary:	Gold, Lead
Tertiary:	Silver
Ore:	Argentite, Chalcopyrite, Galena, Gold, Malachite
Gangue:	Wollastonite
Orebody form:	TABULAR
Discovery year:	1902

Production

Operation type:	Unknown
Production size:	Yes
Development status:	Past Producer

Geology

Host rock:	Round Valley Limestone
Host type:	Limestone
Associated rock:	Alta Stock-Porphyritic Phase
Associated type:	Diorite
Structure:	Uinta-Cottonwood Arch, Sevier Overthrust Belt, Cordilleran Hingeline, Northeast And Northwest Striking Faults And Fissures
Tectonic:	Cordilleran Hingeline, Basin And Range-Colorado Plateau Transition Zone
Alteration processes:	Bleaching And Argillization Noted Adjacent To Faults And Fissures, Calc-Silicate Skarns Next To Intrusive

References

MRDS	D011919
DEP	10014859
Reference	{Deposit:: JAMES, L.P., 1979, GEOLOGY, ORE DEPOSITS, AND HISTORY OF THE BIG COTTONWOOD MINING DISTRICT, SALT LAKE COUNTY, UTAH: U.G.M.S. BULL. NO. 114.}{Deposit:: CALKINS, F.C., AND BUTLER, B.S., 1943, GEOLOGY AND ORE DEPOSITS OF THE COTTONWOOD-AMERICAN FORK AREA, UTAH: U.S. GEOLOGICAL SURVEY PROF. PAPER, NO. 201.}{Deposit:: BUTLER, B.S., LOUGHLIN, G.F., HEIKES, V.C., AND OTHERS, 1920, THE ORE DEPOSITS OF UTAH: U.S. GEOLOGICAL SURVEY PROF. PAPER, NO. 111.}{Deposit:: BAKER, A.A., CALKINS, F.C., CRITTENDEN, M.D., JR., AND BROMFIELD, C.S., 1966, GEOLOGIC MAP OF THE BRIGHTON QUADRANGLE, UTAH: U.S.G.S. GEOL. QUAD. MAP GQ-534}
Reporter	Shubat, Michael A.