| Lat / long: | 39.54928, -121.17494 |
| Tertiary: | Manganese |
| Discovery year: | 1916 |
| Operation type: | Underground |
| Development status: | Past Producer |
| MRDS | M005552 |
| MAS | 60070001 |
| DEP | 10114282 |
| Reference | CALIF DIV OF MINES R 26 P 408 B 152 1950 P 35 B 125 P 104 |
| Reporter | Western Field Operations Center (WFOC) |