Elkhorn

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

Name: Elkhorn  

State:  Montana

County:  Jefferson

Elevation: 6,499 Feet (1,981 Meters)

Primary Mineral: Silver, Gold, Lead, Copper

Lat, Long: 46.28333, -111.95000

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.


Satelite image of the Elkhorn

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


Colorized Mining Photos

Drumlummon Mine at Marysville, Montana late 1880s

Western Mining History's collection of colorized mining photos includes incredible scenes from Montana: Best Historical Photos: Colorized Mining Scenes.