Bunker Hill

The Bunker Hill is a gold and silver mine located in Granite county, Montana at an elevation of 5,400 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: Bunker Hill

Commodity

Primary: Gold
Primary: Silver
Secondary: Copper

Location

State: Montana
County: Granite
District: Henderson 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: Underground

Ownership

Owner Name: Henderson Mining Co.

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1894
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: John Long Mountains

Mineral Deposit Model

Not available

Orebody

Form: TABULAR

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Oxidation

Rocks

Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Name: Granite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic

Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic

Analytical Data

Analytical Data: OXIDE ORE-$6-8/TON AU, 2-3 OZ/TON AG

Materials

Ore: Gold
Gangue: Quartz
Gangue: Calcite
Gangue: Pyrite

Comments

Comment (Production): $20,000 IN GOLD AND SILVER. PRODUCTION WAS RECORDED IN 1933.

Comment (Location): INFO FROM LAND.ST :(1971)

Comment (Workings): 5 TUNNELS, PARTS OF THE MINE INACESSIBLE IN 1906.

Comment (Deposit): A VEIN IN TUNNEL 5 DIPS 35 E, 25 FT BELOW LEVEL OF TUNNEL THIS VEIN JOINS ANOTHER DEPOSIT. THIS SECOND VEIN HAS A DIP OF 03E, IT CAN BE FOLLOWED DOWN DIP FOR 250 FT. IT IS SAID TO BE FAULTED FARTHER EAST. SOME OF THE SILICEOUS SPONGY OXIDIZED ORE IS LIBERALLY COATED WITH SMALL CRYSTALS OF NATIVE SULPHUR.

References

Reference (Deposit): USGS PP 78, P. 257-58.

Reference (Deposit): USGS-USBM MINERAL YEARBOOK 1933.

Reference (Production): EMMONS, 1913 U.S.G.S. PROF. PAPER 78. USGS-USBM MINERAL YEARBOOK 1933.

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.