| Lat / long: | 37.66379, -122.40605 |
| Primary: | Silver |
| Secondary: | Lead, Zinc |
| Gangue: | Quartz |
| Discovery year: | 1919 |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Past Producer |
| MRDS | M022309 |
| DEP | 10035139 |
| Reference | DAVIS, F.F., 1955, MINES & MINERAL RESOURCES OF SAN MATEO COUNTY, CALIF: CALIF. JOUR. MINES & GEOLOGY V. 51, NO. 4, P. 413, PLATE |
| Reporter | Nelson, Scott C. (Albers, John, P.) |