Cumberland Mine

The Cumberland Mine is a silver and lead mine located in Meagher county, Montana at an elevation of 6,601 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: Cumberland Mine

Commodity

Primary: Silver
Primary: Lead
Secondary: Copper
Secondary: Zinc

Location

State: Montana
County: Meagher
District: Castle Mountain District

Land Status

Not available

Holdings

Not available

Workings

Type: Underground

Ownership

Owner Name: Russell Manger, White Sulphur Springs Mt.

Owner Name: Hoco, Inc.
Home Office: Box 469, White Sulphur Springs, Mt 59645

Production

Year: 1961
Time Period: 1888 - 1961
Material type: PB
Description: Cp_Grade: ^About 25%
Year: 1961
Time Period: 1888 - 1961
Material type: AG
Description: Cp_Grade: ^About 20 Toz/St

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1888
Discovery Year: 1886
Discovery Method: Ore-Mineral In Place
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: CRESCENT-SHAPED POD

Structure

Type: R
Description: Castle Stack, El Dorado - Lombard Overthrust, Warm Springs Anticline, Little Belt Anticline

Type: L
Description: Castle Stock, Corral Creek Anticline, Northeast-Striking Flexure

Alterations

Not available

Rocks

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

Name: Dacite
Role: Associated
Age Type: Host Rock
Age Young: Mississippian

Name: Dacite
Role: Associated
Age Type: Host Rock Unit
Age Young: Mississippian

Analytical Data

Not available

Materials

Ore: Galena
Ore: Pyrite
Ore: Smithsonite
Ore: Jasper
Ore: Sphalerite

Comments

Comment (Production): ROBY (1951) ESTIMATES CUMULATIVE PRODUCTION AS 18-20,000,000 LB PB AND 615,000 TOZ AG BUT DISTRICT PRODUCTION 1883-1964 WAS ABOUT 30,000,000 LB PB AND 4,000,000 TOZ AG WITH AT LEAST 15,000,000 PB CREDITED TO OTHER PROPERTIES. AVAILABLE RECORDS SUGGEST THAT AG PRODUCTION WAS STRESSED. PROD. YEARS 1888 - 1897 & 1943 - 1961

Comment (Development): IN 1891 CUMBERLAND MINE WAS LARGEST SINGLE PRODUCER OF LEAD ORE IN MONTANA ; ECON.COM: MINE CEASED OPERATIONS AFTER 1894 SILVER PANIC AND REMAINED INACTIVE UNTIL THE LATE 1950'S WITH INCREASED METAL PRICES AFTER KOREAN WAR.

Comment (Reserve-Resource): BASED ON CROSS-SECTION, AN ESTIMATED 50,000 ST HAVE BEEN STOPED, AND AN ESTIMATED 50,000 ST MINERALIZED GROUND REMAINS BETWEEN THE 500 AND 750 LEVELS. RICHNESS OF ORE DECREASED SHARPLY BELOW 500 LEVEL. ESTIMATE INCLUDES ORE MINED SINCE 1964 BUT AMOUNT OF PRODUCTION IS NOT KNOWN.

References

Reference (Deposit): WINTERS, A. S., 1968, GEOLOGY & ORE DEPOSITS OF THE CASTLE MOUNTAIN, MINING DISTRICT, MEAGHER CO., MT., M.B.M.G. BULL. 64.

Reference (Deposit): ROBY, R. N., 1950, MINES & MINERAL DEPOSITS, MEAGHER CO., MT., U.S. BUREAU OF MINES INF. CIRC. 7540

Reference (Production): WINTERS, 1968, M.B.M.G. BULL. 64.

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.