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
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.
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
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.
