| Lat / long: | 37.60681, -121.49682 |
| Tertiary: | Phosphorus-Phosphates, Manganese, Barium-Barite, Calcium, Iron, Silica, Aluminum |
| Other material: | Chert, Psilomelane, Rhodochrosite, Rhodonite |
| Discovery year: | 1867 |
| Operation type: | Unknown |
| Development status: | Unknown |
| First production started: | 1867 |
| MRDS | M024304 |
| MAS | 60770004 |
| DEP | 10286747 |
| Reference | {Deposit:: MANGANESE IN CALIFORNIA DM&G BULLETIN 152 PP 223-6,1950}{Deposit:: D.M.G. BULL. 76, PG. 76,1918}{Deposit:: U.S.B.M. REP. OF INVESTIGATION 4580,1949} |
| Reporter | Western Field Operations Center (WFOC) |