Eureka Mine

The Eureka Mine is a silver and lead mine located in Lewis and Clark county, Montana at an elevation of 6,250 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: Eureka Mine  

State:  Montana

County:  Lewis and Clark

Elevation: 6,250 Feet (1,905 Meters)

Primary Mineral: Silver, Lead

Lat, Long: 46.47333, -112.23750

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 Eureka Mine

Eureka Mine MRDS details

Site Name

Primary: Eureka Mine


Commodity

Primary: Silver
Primary: Lead
Secondary: Gold
Secondary: Zinc


Location

State: Montana
County: Lewis and Clark
District: Rimini 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

Not available


Workings

Type: Underground


Ownership

Owner Name: Montana Lead Co.


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1865
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Type: R
Description: Boulder Batholith

Type: L
Description: Red Mountain Fault


Alterations

Not available


Rocks

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous


Analytical Data

Not available


Materials

Ore: Galena
Ore: Gold
Ore: Sphalerite
Gangue: Pyrite
Gangue: Siderite
Gangue: Quartz


Comments

Comment (Production): "CONSIDERABLE PRODUCTION", HIGH GRADE ORE. 1865-1883 ORE SHIPPED TO NEWARK, N.J.

Comment (Workings): 2 ADITS 140 FT APART VERTICALLY, A SHAFT, AND A DRIFT THAT RUNS EASTWARD FROM THE SHAFT FOR 462 FT. THE LOWER ADIT IS 890 FT. IT HAD AN AERIL TRAM TO THE RR AT RIMINI.

Comment (Location): ON NW SLOPE OF RED MOUNTAIN, 1.7 KM FROM THE SUMMIT. ; INFO FROM LAND.ST :(1950)


References

Reference (Deposit): USGS PP 428, P. 57.

Reference (Deposit): USGS BULL 842, P. 251.