| Lat / long: | 37.33662, -121.49182 |
| Tertiary: | Manganese |
| Discovery year: | 1917 |
| Operation type: | Surface |
| Development status: | Past Producer |
| MRDS | W025101 |
| MAS | 60850031 |
| DEP | 10213737 |
| Reference | CALIF. JOUR. MINES & GEO.U.50,NO.2APR. 1954, P.415 |
| Reporter | Western Field Operations Center (WFOC) |