| Lat / long: | 46.32489, -113.26512 |
| Tertiary: | Manganese |
| Other material: | Galena, Quartz, Sphalerite, Wad |
| Discovery year: | 1876 |
| Operation type: | Surface-Underground |
| Development status: | Past Producer |
| First production started: | 1917 |
| MAS | 300390022 |
| DEP | 10246114 |
| Reference | {Deposit:: PRINZ,1967,USGS BULL.1237,P39,53,54,PL1,PL8}{Deposit:: PARDEE,1922,USGS BULL 725C P160}{Deposit:: ANON,NO DATE,COYLE MINE USBM UNPUB RPT} |
| Reporter | Montana Bureau Of Mines And Geology Hgm |