Judge Mine

The Judge Mine is a lead and silver mine located in Meagher county, Montana at an elevation of 7,001 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

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.

Site Name

Primary: Judge Mine

Commodity

Primary: Lead
Primary: Silver

Location

State: Montana
County: Meagher
District: Castle Mountains

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: Brophy, J. F.
Home Office: Red Lodge, Mt

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year First Production: 1891
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

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

Mineral Deposit Model

Not available

Orebody

Form: ILL DEFINED

Structure

Type: R
Description: Castle Mountains Consist Of Igneous Core

Type: L
Description: Mine Is On West Flank Of South Plunging Anticline

Alterations

Not available

Rocks

Name: Dacite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene

Name: Dacite
Role: Associated
Age Type: Host Rock
Age Young: Late Devonian

Name: Dacite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Devonian

Name: Dacite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Analytical Data

Not available

Materials

Ore: Smithsonite
Ore: Galena
Gangue: Pyrite
Gangue: Jasper
Gangue: Quartz

Comments

Comment (Location): ALTITUDE AND UTM LOCATION FROM 1 BY 2 DEG SHEET - CASTLE TOWN QUAD NOT YET AVAILABLE

Comment (Commodity): ORE MINERALS DESCRIBED AS BEING SIMILAR TO THAT OF CUMBERLAND MINE

Comment (Deposit): DIMENSIONS (LENGTH AND WIDTH) GIVEN ARE FOR THE SINGLE ORE SHOOT DESCRIBED IN LITERATURE. WIDTH DESCRIBED AS 8 INCHES TO 4 FEET FOR THE PAY ORE.

Comment (Workings): WORKINGS INACCESSIBLE IN 1950

Comment (Geology): DACITE PORPHYRY DIKES COULD POSSIBLY BE RELATED TO THE LARGER SCALE INTRUSIVES IN THE AREA WHICH ARE OF TERTIARY AGE

References

Reference (Deposit): WINTERS, A. S., 1968 , GEOL. AND ORE DEPOSITS OF THE CASTLE MOUNTAIN MINING DISTRICT, MEAGHER COUNTY, MONTANA; MONT. BUREAU OF MINES AND GEOL BULLETIN 64 P. 46 - 47

Reference (Deposit): WEED, PIRSSON, 1896 , GEOLOGY OF THE CASTLE MOUNTAIN MINING DISTRICT, MONTANA, U.S. GEOLOGICAL SURVEY BULLETIN 139 P. 154 - 155

Reference (Deposit): HOGAN, J., AND OLIVER, J., 1892 , 4TH REPORT OF INSPECTOR OF MINES OF STATE OF MONTANA P. 42

Reference (Deposit): ROBY, R. N., 1950 , MINES AND MINERAL DEPOSITS (EXCEPT FUELS) MEAGHER COUNTY, MONTANA: U. S. BUREAU OF MINES INFORMATION CIRCULAR 7540 , P. 25.

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.