The Mike Horse Mine is a zinc, lead, and silver mine located in Lewis and Clark county, Montana at an elevation of 5,669 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: 5,669 Feet (1,728 Meters)
Commodity: Zinc, Lead, Silver
Lat, Long: 47.02314, -112.36262
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.
Mike Horse Mine MRDS details
Site Name
Primary: Mike Horse Mine
Commodity
Primary: Zinc
Primary: Lead
Primary: Silver
Secondary: Copper
Secondary: Gold
Location
State: Montana
County: Lewis and Clark
District: Heddleston 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.
Holdings
Type: Patented
Workings
Type: Underground
Ownership
Owner Name: Asarco (American Smelting And Refining Co.)
Home Office: 120 Broadway, New York, N.Y.
Owner Name: Anaconda Company
Percent: 100.0
Home Office: Delaware
Info Year: 1977
Owner Name: N. Rogers Mining Co,
Home Office: Box 1719, Helena, Mt.
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: porphyry copper
Operation Type: Underground
Year First Production: 1915
Discovery Year: 1898
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: Y
Deposit Size: M
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Mineral Deposit Model
Not available
Orebody
Form: LENSES & SHOOTS (fissure veins)
Structure
Type: R
Description: Lewis Overthrust, Boulder Batholith
Type: L
Description: Local Faulting Has Displaced Diorite Sill And Fractured Ore Body
Alterations
Alteration Type: L
Alteration: pyritization
Alteration Type: L
Alteration: propylitic
Alteration Type: L
Alteration: sericitic
Alteration Text: Seriticization
Rocks
Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Ore: Polybasite
Ore: Enargite
Ore: Tetrahedrite
Ore: Chalcopyrite
Ore: Sphalerite
Ore: Galena
Ore: Pyrite
Gangue: Calcite
Comments
Comment (Workings): WORKINGS IN 1933 INCLUDED 3 ADITS, TUNNELS 1, 2, AND 3, SPACED THROUGH A VERTICAL RANGE OF ABOUT 300 FT.
Comment (Deposit): SUBSTANTIAL PRODUCTION AND DEVELOPMENT FROM 1940 TO 1952
References
Reference (Deposit): Unpublished Montana Bureau of Mines and Geology File Data
Reference (Deposit): REYNER AND TRAUERMAN, 1949, Montana Bureau of Mines and Geology Memoir 31, p.53.
Reference (Deposit): Miller, R.N., 1973, Unpublished Reprint, Geology of the Heddleston Cu-Mo Deposit L&
Reference (Deposit): GEACH, 1966, Montana Bureau of Mines and Geology Bulletin 58, P.26
Reference (Deposit): GEACH, 1964, Montana Bureau of Mines and Geology Bulletin 46, P.20
Reference (Deposit): CROWLEY,1961, Montana Bureau of Mines and Geology Bulletin 25, P.25
Reference (Deposit): YOUNG, ET AL.,1962, Montana Bureau of Mines and Geology Bulletin 30, P.28
Reference (Production): USBM MINERALS YEARBOOKS
Reference (Deposit): ROBERTSON, F., 1956, GEOCHEMICAL PROSPECTING BY SOIL ANALYSES IN MT, MT BUREAU OF MINES & GEOLOGY BULL. 7.
Reference (Deposit): PARDEE AND SCHRADER, 1933, METALLIFEROUS DEPOSITS OF THE GREATER HELENA MINING REGION, U.S. GEOLOGICAL SURVEY BULL. 842.
Principal Gold Districts of Montana
In Montana, 54 mining districts have each have produced more than 10,000 ounces of gold. The largest producers are Butte, Helena, Marysville, and Virginia City, each having produced more than one million ounces. Twenty seven other districts are each credited with between 100,000 and one million ounces of gold production. Read more: Principal Gold Districts of Montana.
