Mine detail: American Tunnel

Previously called 'American MineSilver King Coalition Mines CompanySilver King Western'

Location:	Salt Lake County, Utah, United States, North America
Lat / long:	40.62327, -111.57717
dep_id:	10014860
mrds_id:	D011921
Commodity type:	metallic
Major mineral:	Copper, Silver, Gold
Minor mineral:	Lead
Trace mineral:	Manganese
Operation type:	Unknown
Production size:	Small ammount of material produced
Development status:	Past Producer
ore:	Argentite, Chalcopyrite, Galena, Gold, Malachite, Wad
gangue:	Calcite, Quartz
orebody_fm:	TABULAR, POD
work_type:	Underground
alteration:	Silicification, Bleaching, And Calc-Silicate Formation Adjacent To Dikes, Oxidation
conc_proc:	Precipitation From Magmatic And Hydrothermal Solutions In Vein And Skarn Environments
ore_ctrl:	Northeast Striking Fissures And Dikes
Reporter:	Shubat, Michael A.
hrock_unit:	Park City Formation
hrock_type:	Shale,Limestone
arock_unit:	Diorite Porphyry Dikes
arock_type:	Diorite
Structure:	Uinta-Cottonwood Arch, Sevier Overthrust Belt, Cordilleran Hingeline, American Zone Of Northeast Striking Fissures, Diorite Dikes, And Mineralization
tectonic:	Cordilleran Hingeline, Basin And Range-Colorado Plateau Transition Zone
Year first produced:	1875
yr_lst_prd:	1918
disc_yr:	1875
References:	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. GEOLOGICAL SURVEY GEOL. QUAD. MAP GQ-534