| Lat / long: | 40.29125, -123.10671 |
| Tertiary: | Manganese, Silica |
| Discovery year: | 1917 |
| Operation type: | Surface-Underground |
| Development status: | Past Producer |
| MRDS | M020336 |
| MAS | 61050048 |
| DEP | 10287868 |
| Reference | {Deposit:: TRASK-GEO DESCRIPT.MN DEPS OF CAL-CAL.DIV.MINES BUL.152-APRI}{Deposit:: *RIEN-MINES & MIN RES TRINITY CO-CAL.DIV.MINES GEO.CO.RPT.}{Deposit:: MORSE-UNPUB.RPT.CAL.STATE COUNCIL FOR DEFENSE,1918}{Deposit:: BRADLEY 37TH RPT OF THE STATE MINERALOGIST-CAL.DIV.OF MINES-} |
| Reporter | Niemi |