| Lat / long: | 38.73048, -122.32686 |
| Tertiary: | Manganese |
| Discovery year: | 1916 |
| Operation type: | Unknown |
| Development status: | Occurrence |
| MAS | 60550002 |
| DEP | 10189198 |
| Reference | {Deposit:: CALIF BULL 125 1943 P 145; BULL 152 1950 P 156-7}{Deposit:: ASSAYS MANGANESE 2.25% FERRIC OXIDE 18.81% AND SILICA 66.4%} |
| Reporter | Western Field Operations Center (WFOC) |