| Lat / long: | 37.44574, -122.25048 |
| Primary: | Mercury |
| Ore: | Cinnabar, Mercury, Metacinnabar |
| Orebody form: | IRREGULAR |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Past Producer |
| First production started: | 1955 |
| Host rock: | Franciscan Complex |
| Host type: | Serpentinite |
| Alteration processes: | Silica Carbonate Alteration Of Serpentine |
| MRDS | M055738 |
| DEP | 10040863 |
| Reference | {Deposit:: HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252}{Deposit:: DAVIS, F.F., 1955, MINES AND MINERAL RESOURCES OF SAN MATEO COUNTY, CALIF.: CJMG, V. 51, P. 413-414}{Production:: USBM DATA} |
| Reporter | Peterson, Jocelyn A. |