| Lat / long: | 37.58771, -121.59663 |
| Tertiary: | Manganese |
| Discovery year: | 1918 |
| Operation type: | Underground |
| Development status: | Past Producer |
| MRDS | M020000 |
| MAS | 60010014 |
| DEP | 10284637 |
| Reference | {Deposit:: CALIF JOUR MINES&G V 46 NO2 APRIL 1950 P344 PL58}{Deposit:: DOM BULL 125 P99} |
| Reporter | Western Field Operations Center (WFOC) |