The Greenstone Mine is a copper and silver mine located in Beaverhead county, Montana at an elevation of 7,113 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
Elevation: 7,113 Feet (2,168 Meters)
Commodity: Copper, Silver
Lat, Long: 45.41306, -112.80250
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.
Greenstone Mine MRDS details
Site Name
Primary: Greenstone Mine
Commodity
Primary: Copper
Primary: Silver
Secondary: Gold
Secondary: Tungsten
Location
State: Montana
County: Beaverhead
District: Birch Creek (Utopia) District
Land Status
Land ownership: Private
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: Surface/Underground
Ownership
Owner Name: G. W. Farlin
Years: 1972 -
Owner Name: C. Kennedy
Home Office: Dillon
Years: 1972 -
Production
Year: 1950
Material type: ORE
Description: Ap_Grade: ^1.2% Wo3
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Pioneer Mountains
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: L
Description: Humbolt Mtn. Anticline-East Flank, Pioneer Batholith
Alterations
Alteration Type: L
Alteration Text: Gouge, Oxidation
Rocks
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock Unit
Age Young: Pennsylvanian
Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Pennsylvanian
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Scheelite
Ore: Powellite
Gangue: Garnet
Gangue: Epidote
Gangue: Quartz
Gangue: Talc
Gangue: Calcite
Comments
Comment (Geology): SCHEELITE CRYSTALS ARE UP TO 8.3 MM LONG. ; GEOL.DESC: OXIDIZED CU ORE ALSO PRESENT
Comment (Workings): EARLY WORKINGS CONSIST OF A 240-FOOT SHAFT WITH 176 FEET OF DRIFTING AND 2 ADITS. 1951 TUNGSTEN EXPLORATION INVOLVED EXCAVATING 13 BULLDOZER CUTS
Comment (Location): NW 1/4, SE 1/4, SECT. 11
Comment (Development): EARLY MINING WAS FOR COPPER. IN 1950 MINERALS EXPLORATION CO. BUILT AN ACCESS ROAD FROM WILLOW CR FOR TUNGSTEN EXPLORATION.
Comment (Deposit): TACTITE EXPOSED 480 FEET SOUTH OF GREENSTONE GULCH AND 340 FEET TO THE NORTH. WIDTH ALONG DIP VARIES FROM 25 TO 180 FEET AND AVERAGES 140 FEET. MINERALIZED NW TO NE TRENDING SHEAR ZONES
References
Reference (Deposit): USGS BULL 574, P. 63.
Reference (Deposit): USBM RI 5552, P. 19-22.
Reference (Deposit): MBMG BULL 85, P. 89-91.
Reference (Deposit): 1914 RECON WINCHELL, A.N., U.S.G.S. BULL 574
Reference (Deposit): 1960 RECON U.S. BUREAU OF MINES, R.I. 5552
Reference (Deposit): 1972 COMPILE M.B.M.G. BULL. 82
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.
