| Lat / long: | 37.63021, -121.60493 |
| Tertiary: | Manganese |
| Discovery year: | 1918 |
| Operation type: | Surface |
| Development status: | Past Producer |
| MRDS | M004655 |
| MAS | 60010023 |
| DEP | 10235164 |
| Reference | {Deposit:: DOM BULL 134 PT2 CHAPTER 2 P79}{Deposit:: BULL 186 SAN JOSE} |
| Reporter | Western Field Operations Center (WFOC) |