The Iron Mask Mine is a copper and silver mine located in Broadwater county, Montana at an elevation of 6,549 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: 6,549 Feet (1,996 Meters)
Commodity: Copper, Silver
Lat, Long: 46.34222, -111.66472
Map: View on Google Maps
Iron Mask Mine MRDS details
Site Name
Primary: Iron Mask Mine
Commodity
Primary: Copper
Primary: Silver
Secondary: Gold
Secondary: Lead
Secondary: Zinc
Secondary: Manganese
Location
State: Montana
County: Broadwater
District: Indian Creek District
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: Kenneth Toney,
Home Office: Townsend, Montana
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1905
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: Elkhorn Mountains
Mineral Deposit Model
Not available
Orebody
Form: TABULAR
Structure
Type: R
Description: Boulder Batholith, Lombard Overthrust
Type: L
Description: Large Northwest-Striking Fault About 15 Km Long Which Is About 1 Km North Of Adit
Alterations
Not available
Rocks
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Analytical Data
Analytical Data: CHANNEL SAMPLES AVERAGE 0.04 TOZ/ST AU, 1.95 TOZ/ST AG, 0.2% ZN, 0.9% CU, 4.7% MN
Materials
Ore: Galena
Ore: Sphalerite
Ore: Pyrite
Ore: Tetrahedrite
Comments
Comment (Location): UTM LOCATION OF SHAFTS ON IRON MASK VEIN. CROSSCUT ADIT IN SECTION 30 IS LABELED IRON MASK MINE ON TOWNSEND QUADRANGLE.
Comment (Commodity): VEIN IS HIGHLY OXIDIZED THROUGHOUT THE ZONE OF EXISTING EXPLORATIONS.
Comment (Production): PRODUCTION PREVIOUS TO 1901 NOT AVAILABLE. MOST PRODUCTION BETWEEN 1943 AND 1947
Comment (Workings): MINE DEVELOPED THROUGH SEVERAL SHAFTS ON IRON MASK VEIN AND A 700 M CROSSCUT ADIT WHICH PENETRATES THE VEIN ABOUT 174 M BELOW THE OUTCROP. VEIN HAS BEEN DEVELOPED THROUGH THIS OPENING BY A SERIES OF RAISES AND STOPES ALONG A HORIZONTAL DISTANCE OF 183 M.
References
Reference (Deposit): REED, G. C., 1951, MINES AND MINERAL DEPOSITS (EXCEPT FUELS), BROADWATER COUNTY, MONTANA: U.S. BUREAU OF MINES INF. CIRC. 7592
Reference (Deposit): SCHELL, E. M., 1963, ORE DEPOSITS OF THE NORTHERN PART OF THE PARK (INDIAN CREEK) DISTRICT, BROADWATER CO., MONTANA: MONTANA BUREAU OF MINES AND GEOL. BULL. 35
Reference (Production): REED (1951) USBM IC 7592
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.
