| Lat / long: | 39.05959, -121.11243 |
| Tertiary: | Manganese |
| Discovery year: | 1917 |
| Operation type: | Surface-Underground |
| Development status: | Past Producer |
| MAS | 60570004 |
| DEP | 10140053 |
| Reference | CALIF JOUR MINES & 61G V 37, NO 3 JULY 1941,P 441; |
| Reporter | Western Field Operations Center (WFOC) |