| Lat / long: | 37.41212, -121.41432 |
| Tertiary: | Manganese, Silica |
| Other material: | Chert, Psilomelane |
| Discovery year: | 1918 |
| Operation type: | Surface-Underground |
| Development status: | Past Producer |
| MRDS | M020199 |
| MAS | 60850025 |
| DEP | 10165034 |
| Reference | {Deposit:: TRASK-GEO DESCRIPTION,CAL MN DEPS-CAL DIV.OF.MINES,BUL.152 A}{Deposit:: JENKINS-MN IN CALIF-CAL DIV.OF MINES BUL.125,DEC.1943}{Deposit:: BRADLEY-MN AND CR IN CALIF-CAL DIV.OF MINES BUL.76,AUG.1918}{Deposit:: VOLIN-INVESTIG BLK.WONDER MN.DEPS-USBM RPT.OF INVEST.5254 SE} |
| Reporter | Niemi |