| Lat / long: | 37.53961, -121.37272 |
| Tertiary: | Calcium, Iron, Manganese, Silica |
| Other material: | Calcite, Chert, Limonite, Pyrolusite |
| Operation type: | Surface |
| Development status: | Prospect |
| First production started: | 1918 |
| MRDS | M020271 |
| MAS | 60990016 |
| DEP | 10190050 |
| Reference | {Deposit:: CAL.DIV.MINES AND GEOL.,BULL.152,1950}{Deposit:: TRENGROVE,R.R,U.S.B.M.REPT.INV.NO5579,1960}{Deposit:: 21ST REPORT OF STATE MINERALOGIST P216} |
| Reporter | Deino, Al |