Boulder Chief Mine

The Boulder Chief Mine is a lead and silver mine located in Jefferson county, Montana at an elevation of 7,520 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: Boulder Chief Mine  

State:  Montana

County:  Jefferson

Elevation: 7,520 Feet (2,292 Meters)

Primary Mineral: Lead, Silver

Lat, Long: 46.33056, -112.20944

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 Boulder Chief Mine

Boulder Chief Mine MRDS details

Site Name

Primary: Boulder Chief Mine


Commodity

Primary: Lead
Primary: Silver
Secondary: Copper
Secondary: Zinc
Tertiary: Arsenic
Tertiary: Uranium


Location

State: Montana
County: Jefferson
District: Colorado (Corbin-Wickes) 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: Surface/Underground


Ownership

Owner Name: John H. Shober, Helena, And Margaret Evans.


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
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


Alterations

Not available


Rocks

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

Analytical Data: IRON-STAINED QUARTZ CONTAINED 0.016% EQUIVALENT URANIUM AND 0.010% URANIUM.


Materials

Ore: Sphalerite
Ore: Galena
Gangue: Quartz
Gangue: Pyrite


Comments

Comment (Location): N OF MT THOMPSON. ; INFO FROM LAND.ST :(1950)

Comment (Production): A SMALL AMOUNT OF LEAD, SILVER, AND COPPER WAS PRODUCED BETWEEN 1913-1917.

Comment (Workings): HORSE WHIM WAS USED AND ONCE IT HAD A GRAVITY CONCENTRATOR. SHAFT (CAVED), CROSSCUTS, DRIFTS, PITS


References

Reference (Deposit): MBMG BULL 16, P. 24.

Reference (Deposit): USGS PP 428, P. 95.

Reference (Deposit): USGS CIRC 277, P. 7.

Reference (Production): USGS PP 428


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.