The Norwich Mine is a manganese mine located in Silver Bow county, Montana at an elevation of 5,712 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: 5,712 Feet (1,741 Meters)
Commodity: Manganese
Lat, Long: 46.01889, -112.57917
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.
Norwich Mine MRDS details
Site Name
Primary: Norwich Mine
Commodity
Primary: Manganese
Tertiary: Lead
Tertiary: Zinc
Tertiary: Silver
Tertiary: Molybdenum
Tertiary: Gold
Tertiary: Copper
Location
State: Montana
County: Silver Bow
District: Butte 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: I. G. Irving And R. H. Nelson
Owner Name: Norwich Min. Co And Umont Min. Co.
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Mineral Deposit Model
Not available
Orebody
Form: IRREGULAR
Structure
Type: R
Description: Boulder Batholith
Type: L
Description: One Major Cross Fault, East - West Fault System, Northwest Fault System, Northeast Fault System
Alterations
Alteration Type: L
Alteration Text: Sericitization, Chloritization, Minor Silicification, Pyritization
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Rhodochrosite
Ore: Sphalerite
Ore: Molybdenite
Ore: Galena
Gangue: Pyrite
Gangue: Quartz
Gangue: Tourmaline
Comments
Comment (Location): LOCATION APPROXIMATED
Comment (Commodity): SILVER MINERALS ALSO INCLUDE SILVER BEARING TETRAHEDRITE OR FREIBERGITE - POSSIBLY OTHERS
Comment (Deposit): THREE VEINS IN MINE AREA, NORWICH, PLUTUS, AND "HANGING WALL" VEINS, NORWICH VEIN HAS PRIMARY CONSIDERATION AND IS DESCRIBED ABOVE.
Comment (Workings): WORKINGS ON SIX LEVELS ON THE NORWICH VEIN "HANGING WALL" VEIN ENCOUNTERED ON 3 LEVELS
References
Reference (Deposit): COLE, J. W., 1951 , INVESTIGATION OF THE NORWICH MANGANESE DEPOSIT, SILVER BOW COUNTY, MONT: U. S. BUREAU OF MINES REPORT OF INVESTIGATIONS 4784 , 14 P.
Reference (Deposit): COLE, J.W., 1951, INVESTIGATION OF THE NORWICH MANGANESE DEPOSIT, SILVER BOW COUNTY, MONTANA: U.S. BUREAU OF MINES REPORT OF INVESTIGATION NO. 4784, 14 P.
Reference (Deposit): 1951 DIREXPL U. S. BUREAU OF MINE
Reference (Deposit): HO, AU - N60C, 1957 , GEOLOGY AND ORE DEPOSITS OF THE NORWICH MINE, SILVER BOW COUNTY, MONTANA, MASTERS THESIS, MONTANA SCHOOL OF MINES (MONTANA TECH). VOLS. 1 AND 2
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.
