| Lat / long: | 37.78882, -120.19099 |
| Tertiary: | Manganese |
| Discovery year: | 1940 |
| Operation type: | Surface-Underground |
| Development status: | Past Producer |
| MRDS | W025921 |
| MAS | 61090008 |
| DEP | 10141299 |
| Reference | DOM BULL. P91 208 |
| Reporter | Western Field Operations Center (WFOC) |