| Lat / long: | 40.19735, -123.26831 |
| Tertiary: | Iron, Manganese, Silica |
| Other material: | Chert, Limonite, Psilomelane |
| Discovery year: | 1941 |
| Operation type: | Surface |
| Development status: | Past Producer |
| First production started: | 1943 |
| MAS | 61050008 |
| DEP | 10117581 |
| Reference | *RIEN-MINES & MIN RES TRINITY CO-CAL DIV.MINES GEO.CO.RPT |
| Reporter | Niemi |