| Lat / long: | 35.25527, -120.72737 |
| Tertiary: | Manganese, Silica |
| Other material: | Chert, Jasper, Psilomelane, Rhodochrosite |
| Discovery year: | 1917 |
| Operation type: | Surface |
| Development status: | Past Producer |
| First production started: | 1918 |
| MRDS | M020169 |
| MAS | 60790023 |
| DEP | 10189429 |
| Reference | {Deposit:: CALIF. STATE MINING BUR. BULLETIN 76, 1918, P. 72-73.}{Deposit:: CALIF. DIV. MINES BULLETIN 152, 1950, P. 238-239.}{Deposit:: U.S. BUREAU OF MINES RI 5579, 1960, P. 45.} |
| Reporter | Ridenour, James |