| Lat / long: | 38.51239, -122.32996 |
| Tertiary: | Manganese |
| Discovery year: | 1918 |
| Operation type: | Surface |
| Development status: | Prospect |
| MAS | 60550009 |
| DEP | 10236804 |
| Reference | {Deposit:: CALIF BULL 125 1943 P 146; BULL 152 1950 P 160-1}{Deposit:: ASSAYS MANGANESE 17.8% SILICA 66.9%} |
| Reporter | Western Field Operations Center (WFOC) |