Shamrock Mine

The Shamrock Mine is a gold mine located in Granite 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: Shamrock Mine  

State:  Montana

County:  Granite

Elevation:

Commodity: Gold

Lat, Long: 46.82722, -113.34222

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 Shamrock Mine

Shamrock Mine MRDS details

Site Name

Primary: Shamrock Mine


Commodity

Primary: Gold
Secondary: Copper
Secondary: Lead
Tertiary: Barium-Barite
Tertiary: Antimony


Location

State: Montana
County: Granite
District: Garnet (First Chance) District


Land Status

Not available


Holdings

Not available


Workings

Type: Surface/Underground


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1867
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Garnet Range


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Type: R
Description: Bearmouth Overthrust

Type: L
Description: Deep Creek Anticline, Garnet Stock


Alterations

Alteration Type: L
Alteration Text: Oxidation


Rocks

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous

Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous

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


Analytical Data

Not available


Materials

Ore: Galena
Ore: Chalcopyrite
Ore: Tetrahedrite
Ore: Gold
Gangue: Quartz
Gangue: Barite
Gangue: Pyrite


Comments

Comment (Production): GT $100000 IS REPORTED

Comment (Development): CLOSED IN 1916

Comment (Workings): 350 FT INCLINE, 6 LEVELS

Comment (Deposit): ORE SIMALAR TO DEWEY0 A BRANCHING VEIN.


References

Reference (Production): USGS BULL 660

Reference (Deposit): USGS BULL 660, P171-78, 186


Principal Gold Districts of Montana

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.