| Lat / long: | 40.59424, -123.75783 |
| Tertiary: | Manganese |
| Other material: | Chert, Psilomelane, Pyrolusite |
| Discovery year: | 1917 |
| Operation type: | Surface |
| Development status: | Past Producer |
| First production started: | 1918 |
| MAS | 60230005 |
| DEP | 10163612 |
| Reference | {Deposit:: TRASK-GEO DESCRIPT MN DEPS OF CAL-CAL DIV MINES BUL 152-APRI}{Deposit:: JENKINS-MN IN CALIF-CAL DIV OF MINES BUL.125-DEC 1943}{Deposit:: TRENGOVE-RECON OF CAL MN DEPS-USBM-RPT OF INVEST 5579-1960}{Deposit:: BRADLEY-MN & CR IN CALIF-CAL DIV OF MINES BUL.76-1918}{Deposit:: LAIZURE-RPT XXI OF STATE MINERALOGIST-MINING IN CA-HUMBOLDT}{Deposit:: DAVIS, E.F. &WOODFORD, A.O.-UNPUBRPT CAL STATE COUNCIL FOR D} |
| Reporter | Niemi |