| Lat / long: | 37.38212, -121.38572 |
| Tertiary: | Manganese |
| Discovery year: | 1893 |
| Operation type: | Unknown |
| Development status: | Past Producer |
| MRDS | M020277 |
| MAS | 60990028 |
| DEP | 10287180 |
| Reference | {Deposit:: DOM BULL 125 P 192; DOM BULL 152 P 297; USBM RI 5579 P 29}{Deposit:: CALIF JOUR MINES AND GEOL V 43, NO 2, APRIL 1947, P 90, PL}{Deposit:: USGS BULL 936-D, P98-101, PL 10}{Deposit:: REPORT 55 OF ST MIN P163} |
| Reporter | Western Field Operations Center (WFOC) |