| Lat / long: | 37.48492, -121.38932 |
| Tertiary: | Manganese |
| Discovery year: | 1942 |
| Operation type: | Surface-Underground |
| Development status: | Past Producer |
| MRDS | M020278 |
| MAS | 60990026 |
| DEP | 10238436 |
| Reference | CJMG V 43 NO 2 PL 15; DOM BULL 125 P 192 |
| Reporter | Western Field Operations Center (WFOC) |