Mine detail: Ramshorn Mine

Previously called 'Post BoyUtah BoyAetna'

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Location

Lat / long: 44.41019, -114.36232

Resource(M)

Primary: Lead, Silver
Secondary: Copper
Tertiary: Zinc, Gold
Ore: Argentite, Chalcopyrite, Galena, Sphalerite, Tetrahedrite, Cerargyrite, Fluorite, Malachite
Gangue: Pyrite, Quartz, Siderite, Calcite
Orebody form: TABULAR
Discovery year: 1877

Production

Operation type: Underground
Production size: Small
Development status: Past Producer
First production started: 1877

Geology

Host rock:Ramshorn Slate, Garden Creek Phyllite, Bayhorse Dolomite, Kinnikinic Quartzite
Host type:Slate,Phyllite,Dolomite,Quartzite,Conglomerate
Associated rock:Idaho Batholith, Challis Volcanics
Associated type:Quartz Monzonite,Andesite,Tuff
Structure:2 Faults, Bayhorse Anticline

References

MRDSW014288
MAS160370279
DEP10071079
Reference{Deposit:: Umpleby, J. B., 1913, Some Ore Deposits In Northwestern Custer County, Idaho: USGS Bulletin 539, 104 P.}{Deposit:: Ross, C. P., 1937, Geology And Ore Deposits Of The Bayhorse Region, Custer County, Idaho: USGS Bulletin 877, 161 P.}{Deposit:: Lokken, J. C., 1925, A Metallurgical Investigation Of Ore Of The Ramshorn Mine, Custer County, Idaho: Moscow, Idaho, Univ. Of Idaho Ms Thesis, 46 P.}{Deposit:: Campbell, A., 1947, Forty-Eighth Annual Report Of The Mining Industry Of Idaho For The Year 1946.}{Deposit:: Campbell, A., 1945, Forty-Sixth Annual Report Of The Mining Industry Of Idaho For The Year 1944.}{Deposit:: McDowell, G. A., 1948, Forty-Ninth Annual Report Of The Mining Industry Of Idaho For The Year 1947.}{Deposit:: Campbell, A., 1946, Forty-Seventh Annual Report Of The Mining Industry Of Idaho For The Year 1945.}{Deposit:: 1913 Geolmap Umpleby, J. B., Bulletin 539}{Deposit:: 1937 Geolmap Ross, C. P., Bulletin 877}{Deposit:: 1945 Compile 46th State Mine Inspecto* Ann. Rept., 1944}{Deposit:: 1946 Compile 47th State Mine Inspecto* Ann. Rept., 1945}{Deposit:: 1947 Compile 48th State Mine Inspecto* Ann. Rept., 1946}{Deposit:: 1948 Compile 49th State Mine Inspecto* Ann. Rept., 1947}{Deposit:: Bell, R.N. Fourteenth Annual Report Of The Mining Industry Of Idaho For The Year 1912, P. 94}{Deposit:: Bell, R.N. 1904 Report Of The Mining Districts Of Idaho For The Year 1903, P. 50-51}{Deposit:: U.S. Bureau Of Mines Open-File Report MLA 6-91, 1991, Table A-3, No. 516, P. 226.}{Deposit:: Chambers, A. E., 1966, Geology And Mineral Deposits Of Part Of The Bayhorse Mining District: Unpublished Ph.D Dissertation, Univ. Of Arizona}{Deposit:: Bayshore Smelter, 1902, Ramshorn Mines Company Production For 1902-1906: Bayhorse Smelter Records.}{Production:: Ross, C.P., 1937 , USGS Bulletin 877 Campbell, A., 1947 , 48th Annual Report, P. 240 Campbell, A., 1945 , 46th Annual Report, P. 202 McDowell, G.A., 1948 , 49th Annual Report, P. 234 Campbell, A., 1946 , 47th Annual Report, P. 245.}
ReporterPetersen, David W., Siefken, Robert R. (Miller, Pat), Western Field Operations Center (WFOC)