| Lat / long: | 37.6013, -121.65131 |
| Primary: | Manganese |
| Ore: | Rhodochrosite |
| Discovery year: | 1888 |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Producer |
| Host rock: | Franciscan Complex |
| Host type: | Chert |
| MRDS | M004659 |
| DEP | 10109078 |
| Reference | {Deposit:: CALIF. JOUR. MINES & GEOL. V. 46, NO.2, APRIL 1950, P.343, PL. 58}{Deposit:: DOM BULL. 125, P.96}{Deposit:: BULL. 152, P.17-18} |
| Reporter | Gere, W., Von Dohlen, E.; Albers, J. |