The Pomeroy Mine is a copper, silver, lead, and gold mine located in Beaverhead county, Montana at an elevation of 6,719 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: 6,719 Feet (2,048 Meters)
Commodity: Copper, Silver, Lead, Gold
Lat, Long: 45.19889, -112.96611
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.
Pomeroy Mine MRDS details
Site Name
Primary: Pomeroy Mine
Secondary: Brick Pomeroy
Secondary: Silver Buckle
Secondary: Silver Belt
Commodity
Primary: Copper
Primary: Silver
Primary: Lead
Primary: Gold
Secondary: Zinc
Location
State: Montana
County: Beaverhead
District: Blue Wing 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: Underground
Ownership
Owner Name: Spokane National Mines, Inc.
Years: 1967 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year First Production: 1865
Discovery Year: 1865
Discovery Method: 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
Form: LENSES
Structure
Type: L
Description: Limestone Trends N30w, 25 Ne. Possibly Two N Trending Faults.
Alterations
Alteration Type: L
Alteration Text: Oxidation, Gouge
Rocks
Name: Limestone
Role: Host
Age Type: Host Rock
Age Young: Mississippian
Name: Limestone
Role: Host
Age Type: Host Rock Unit
Age Young: Mississippian
Analytical Data
Analytical Data: CHIP SAMPLE ACROSS GOUGE ASSAYED 0.003 OZ AU/TON, 1.25 OZ AG/TON, 0.20% PB, AND 0.40% ZN.
Materials
Gangue: Calcite
Gangue: Quartz
Comments
Comment (Deposit): Discovery Year: 1860'S
Comment (Development): THREE PATENTED CLAIMS, THE SILVER BUCKLE, SILVER BELT, AND QUEBEC. SPOKANE MINES INC. DID A SMALL AMOUNT OF EXPLORATION WORK IN 1966-67.
Comment (Deposit): WELL-DEFINED VEINS IN BLUISH-WHITE LIMESTONE. POSITION OF WORKINGS INDICATES VEIN WAS OFFSET BY TWO NORTH-TRENDING FAULTS WITH LEFT-LATERAL APPARENT DISPLACEMENT
Comment (Workings): INCLINED SHAFT WITH OPEN STOPES WHICH REACH THE SURFACE. THREE OR FOUR SHAFTS IN ALL.
Comment (Location): ACCORDING TO MAPS BY LOWELL AND SHENON, CORRECT LOCATION IS LABLED DEL MONTE MINE ON THE BANNACK QUADRANGLE
Comment (Production): PROPERTY WAS APPARENTLY IDLE FROM 1909-1966.
References
Reference (Deposit): MBMG BULL 6, P. 37.
Reference (Deposit): USGS MGI I-433
Reference (Deposit): BERGER, B.R., AND OTHERS, 1979, GEOCHEM. RECON.-MINING DISTRICTS OF SO. PIONEER MTNS., MONT: U.S.G.S. OPEN-FILE REPORT 79-1426, P. 13.
Reference (Deposit): MBMG BULL 85, P. 103.
Reference (Deposit): 1931 GEOLMAP M.B.M.G. BULL. 6
Reference (Deposit): 1965 GEOLMAP LOWELL, W.R., U.S.G.S. MAP I-433
Reference (Deposit): 1972 COMPILE M.B.M.G. BULL. 85
Reference (Deposit): 1979 RECON BERGER, B.R., U.S.G.S. OPEN-FILE 79-1426
Reference (Production): M.B.M.G. BULL. 85
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.
