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
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.
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
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.
