| Lat / long: | 38.04158, -120.43517 |
| Primary: | Graphite |
| Operation type: | Unknown |
| Production size: | Yes |
| Development status: | Producer |
| MRDS | W025984 |
| DEP | 10111233 |
| Reference | {Deposit:: CALIF JOUR MINES AND GEOL V45 NO1 JAN 1949 P75 CLAIM LOCATED ON THE}{Deposit:: PATENTED BLACK HAWK PLUMBAGO PLACER MINE} |
| Reporter | Unknown |