| Lat / long: | 37.12822, -121.68742 |
| Tertiary: | Manganese |
| Discovery year: | 1917 |
| Operation type: | Unknown |
| Development status: | Past Producer |
| MRDS | W025111 |
| MAS | 60850027 |
| DEP | 10262655 |
| Reference | DOM BULL. 125, P. 179, BULL. 152, P.256, CALIF. JOUR. V.50, |
| Reporter | Western Field Operations Center (WFOC) |