| Lat / long: | 37.46432, -121.51492 |
| Tertiary: | Manganese |
| Discovery year: | 1917 |
| Operation type: | Surface-Underground |
| Development status: | Past Producer |
| MRDS | W025107 |
| MAS | 60850039 |
| DEP | 10189323 |
| Reference | {Deposit:: CALIF. JOUR. MINES & GEO. V. 50,NO.2 APR. 1954, P.416}{Deposit:: BULL. 152, P.262.} |
| Reporter | Western Field Operations Center (WFOC) |