The Horseshoe Mine is a silver and copper mine located in Custer county, Idaho at an elevation of 8,399 feet.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Elevation: 8,399 Feet (2,560 Meters)
Commodity: Silver, Copper
Lat, Long: 43.8978, -113.68970
Map: View on Google Maps
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Horseshoe Mine MRDS details
Site Name
Primary: Horseshoe Mine
Commodity
Primary: Silver
Primary: Copper
Secondary: Lead
Tertiary: Gold
Tertiary: Zinc
Location
State: Idaho
County: Custer
District: Alder Creek District
Land Status
Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Administrative Organization: Challis National Forest
Holdings
Not available
Workings
Type: Surface/Underground
Ownership
Owner Name: Taylor, Ivan
Owner Name: U.S. Mining And Smelting Co.
Production
Year: 1928
Time Period: 1916-1928
Material type: ORE
Description: Cp_Grade: ^100 Oz Ag/Ton, 20 % Pb, Au, Zn ( 1917 )
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Underground
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: White Knob Mountains
Mineral Deposit Model
Not available
Orebody
Form: LENS, IRREGULAR
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Oxidation
Rocks
Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Paleocene
Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Pliocene
Analytical Data
Analytical Data: ANOTHER ORE BODY 14 OZ AG/TON, $2 AU/TON, 6% CU
Analytical Data: SOME SAMPLES HAD 0.75 OZ AG/UNIT PB
Materials
Ore: Chalcopyrite
Ore: Sphalerite
Ore: Galena
Ore: Marmatite
Ore: Malachite
Gangue: Pyrrhotite
Gangue: Pyrite
Comments
Comment (Production): Item 15 Production Intermittent
Comment (Workings): Workings Caved, 6 Levels
Comment (Geology): Umpleby (1917) Labels Nelson and Ross' (1968) Leucogranite Porphyry As Granite Porphyry
References
Reference (Deposit): Leland, G. R., 1957, General Geology And Mineralization Of The Mackay Stock Area: Moscow, Idaho, Univ. Of Idaho, M. S. Thesis, 71 P.
Reference (Deposit): U.S. Bureau Of Mines Open-File Report MLA 6-91, 1991, Table A-4, No. 572, P. 239.
Reference (Deposit): Ross, C. P., 1930, Geology And Ore Deposits Of The Seafoam, Alder Creek, Little Smoky And Willow Creek Mining Districts, Custer And Camas Counties, Idaho: Idaho Bureau Of Mines And Geology Pamphlet 33, 26 P.
Reference (Deposit): Nelson, W. H., And Ross, C. P., 1968, Geology Of Part Of The Alder Creek Mining District, Custer County, Idaho: USGS Bulletin 1252-A, 30 P.
Reference (Deposit): USBM, 1975, Activity Of Idaho Mining Properties, 1974: USBM, Boise, Idaho, 61 P.
Reference (Deposit): 5) Salt Lake Mining Review, 1923, Mineral Resources And Opportunities Of Custer County, Idaho: Salt Lake Mining Review, V. 25, No. 6, P. 12-15.
Reference (Deposit): 6) Bell, R. N., 1918, Nineteenth Annual Report Of The Mining Industry Of Idaho For The Year 1917
Reference (Deposit): 7) USBM, 1938-1953, Gold, Silver, Copper, Lead, And Zinc In Idaho: USBM Mineral Yearbooks For 1937-1950
Reference (Deposit): 1918 Compile State Mine Inspector'S Annual Report For 1917
Reference (Deposit): 1930 Geolmap Idaho Bureau Of Mines And Geology Pamphlet 33
Reference (Production): Items 8-14, Leland, G. R., 1957, Univ. Of Idaho, M. S. Thesis; Item 8 Grade, Bell, R. N., 1918, Mining Industry Report For 1917; Item 15, USBM, 1938-1953, Mineral Yearbooks For 1937-1950; Item 1, USBM, 1945, Mineral Yearbook For 1943; Item 2, USBM, 1948, Mineral Yearbook For 1946
Reference (Deposit): 1938 Compile USBM Mineral Yearbooks For 1937-1950
Reference (Deposit): 1968 Geolmap Nelson, W. H. And Ross, C. P., Bulletin 1252-A
Reference (Deposit): 1975 Compile USBM Activity Of Idaho Mining Properties, 1974
Idaho Gold
"Where to Find Gold in Idaho" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Idaho. Read more: Where to Find Gold in Idaho.
