The Elkhorn is a silver, gold, lead, and copper mine located in Jefferson county, Montana at an elevation of 6,499 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: 6,499 Feet (1,981 Meters)
Commodity: Silver, Gold, Lead, Copper
Lat, Long: 46.28333, -111.95000
Map: View on Google Maps
Elkhorn MRDS details
Site Name
Primary: Elkhorn
Commodity
Primary: Silver
Primary: Gold
Primary: Lead
Primary: Copper
Secondary: Bismuth
Location
State: Montana
County: Jefferson
District: Elkhorn
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1875
Discovery Year: 1875
Discovery Method: Ore-Mineral Not In Place
Years of Production:
Organization:
Significant: N
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Mineral Deposit Model
Not available
Orebody
Form: IRREGULAR
Structure
Type: R
Description: Boulder Batholith
Type: L
Description: Extensive Folding Axis N-S With Prevailing Eastward Dip.
Alterations
Alteration Type: L
Alteration Text: Oxidation
Rocks
Name: Limestone
Role: Host
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Analytical Data
Analytical Data: 10-25 OZ/TON AG, 34-64% PB.
Materials
Ore: Tetrahedrite
Ore: Pyrite
Ore: Sphalerite
Ore: Bismuthinite
Ore: Magnetite
Ore: Tetradymite
Ore: Galena
Ore: Bournonite
Gangue: Aragonite
Gangue: Serpentine
Gangue: Diopside
Gangue: Dolomite
Gangue: Quartz
Comments
Comment (Production): TOTAL = $14,000,000 - $1,500,000 AU
Comment (Deposit): IN ELKHORN MINE THERE IS A COMPLETE ABSENCE OF METASOMATIC GANGUE MINERALS.
Comment (Deposit): BIGGEST MINES: PLACK BESS, CARDIFF, EMMA LOOK FOR FAULT PATTERNS ON IMAGERY; NS, EW, ENE.
Comment (Development): MINES: ELKHORN, GOLDEN CURRY, QUEEN
Comment (Workings): ELKHORN MINE IS A SADDLE-REEF TYPE OF ORE BODY.
Comment (Geology): INBEDDED IN THE ANDESITE ARE MARBLE BLOCKS (PERHAPS FROM THE MADISON LIMESTONE OR INTERSTRATIFIED LENSES OF LIMESTONE)
References
Reference (Deposit): WEED, W.H., 1901, GEOLOGY AND ORE DEPOSITS OF THE ELKHORN MINING DISTRICT, JEFFERSON CO., MONTANA, 22 ANN. REPT. USGS P. 399-549
Reference (Deposit): KNOPF, A., 1913, ORE DEPOSITS OF THE HELENA MINING REGION, MONTANA USGS BULL. 527. P. 128-139.
Reference (Deposit): PARDEE, J. T. AND F. C. SCHRADER, 1933, METALLIFEROUS DEPOSITS OF THE GREATER HELENA MINING REGION, USGS BULL. 842 P. 299-303.
Reference (Deposit): 1901 GEOLMAP WEED, W.H., COMPLEX GEOLOGIC INVESTIGATION
Reference (Deposit): 1913 COMPILE KNOPF, A.
Reference (Deposit): 1933 COMPILE PARDEE & SCHRADER
Reference (Production): PARDEE & SCHRADER
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.
