| Lat / long: | 39.57346, -123.4197 |
| Tertiary: | Manganese |
| Discovery year: | 1918 |
| Operation type: | Surface |
| Development status: | Past Producer |
| MRDS | M010078 |
| MAS | 60450016 |
| DEP | 10139906 |
| Reference | CALIF JOUR MINES AND GEOL V49 NO4 OCT 1953 P390 |
| Reporter | Western Field Operations Center (WFOC) |