| Lat / long: | 46.01879, -112.58006 |
| Primary: | Manganese |
| Tertiary: | Lead, Zinc, Silver, Molybdenum, Gold, Copper |
| Ore: | Galena, Molybdenite, Rhodochrosite, Sphalerite |
| Gangue: | Pyrite, Quartz, Tourmaline |
| Orebody form: | IRREGULAR |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Past Producer |
| Structure: | Boulder Batholith, One Major Cross Fault, East - West Fault System, Northwest Fault System, Northeast Fault System |
| Alteration processes: | Sericitization, Chloritization, Minor Silicification, Pyritization |
| MRDS | W026571 |
| DEP | 10078302 |
| 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}{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.}{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.}{Deposit:: 1951 DIREXPL U. S. BUREAU OF MINE} |
| Reporter | Mc Kenzie, Craig L.; R. B. Berg |