The Iron Mask Mine is a lead, silver, and copper mine located in Beaverhead county, Montana at an elevation of 6,601 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: 6,601 Feet (2,012 Meters)
Commodity: Lead, Silver, Copper
Lat, Long: 45.18889, -112.94667
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.
Iron Mask Mine MRDS details
Site Name
Primary: Iron Mask Mine
Commodity
Primary: Lead
Primary: Silver
Primary: Copper
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: Constance Crawford
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
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
Not available
Alterations
Alteration Type: L
Alteration Text: Oxidation
Rocks
Name: Diorite
Role: Host
Age Type: Host Rock
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Gangue: Calcite
Gangue: Quartz
Comments
Comment (Production): ACTUAL PRODUCTION FIGURES ARE CONFIDENTIAL
Comment (Development): ONE PATENTED CLAIM
Comment (Deposit): WELL DEFINED VEINS EXPOSED AT SURFACE. OXIDIZED ORE NEAR SURFACE BUT SULFIDES ARE REPORTED AT DEPTH. VEIN ON SURFACE RESEMBLES THE DEL MONTE VEINS.
Comment (Workings): ONE SHAFT, REPORTEDLY 200-FT DEEP.
Comment (Geology): GEOL.DESC: MN, FE OXIDES; CALCITE AND QUARTZ GANGUE.
References
Reference (Deposit): MBMG BULL 85, P. 101.
Reference (Deposit): 1931 COMPILE M.B.M.G. BULL. 6
Reference (Deposit): 1965 GEOLMAP LOWELL, W.R., U.S.G.S. MAP I-433
Reference (Deposit): 1979 RECON BERGER, B.R., U.S.G.S. OPEN-FILE 79-1426
Reference (Deposit): MBMG BULL 6, P. 38-39.
Reference (Deposit): USGS MGI I-433
Reference (Deposit): BERGER, B.R., AND OTHERS, 1979, GEOCHEM. RECON.-MINING DISTRICTS IN SO. PIONEER MTNS., MONTANA: U.S.G.S. OPEN-FILE REPORT 79-1426, P. 13
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.
