G. Washington Mine

The G. Washington Mine is a uranium mine located in Jefferson county, Montana.

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: G. Washington Mine  

State:  Montana

County:  Jefferson

Elevation:

Primary Mineral: Uranium

Lat, Long: 46.44861, -112.00583

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 G. Washington Mine

G. Washington Mine MRDS details

Site Name

Primary: G. Washington Mine
Secondary: Member of Presients Group.


Commodity

Primary: Uranium


Location

State: Montana
County: Jefferson
District: Clancy-Lump Gulch District


Land Status

Not available


Holdings

Not available


Workings

Type: Underground


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Year: 1952
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

Form: VEINLETS


Structure

Type: R
Description: Boulder Batholith


Alterations

Alteration Type: L
Alteration Text: Walls Altered To Clay And Fine-Grained Silica


Rocks

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

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


Analytical Data

Not available


Materials

Ore: Uraninite
Gangue: Chalcedony


Comments

Comment (Deposit): VEIN 3 FT. WIDE IN DRIFT, 10 FT. WIDE AT THE OUTCROP THE VEIN CONSISTS OF MANY BRAIDED CHALCEDONY VEINLETS, TOWARDS THE W END OF A DRIFT THE VEINLETS BECOME INDISTINCT IN THE ALTERED ROCK WALL.

Comment (Workings): RAISE, DRIFTS, CROSSCUT TUNNEL

Comment (Location): 6.8 KM NNW OF JEFFERSON CITY.


References

Reference (Deposit): USGS PP 428, P. 41, 45, 49, 63, 69


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.