| Lat / long: | 38.45239, -122.51162 |
| Primary: | Perlite |
| Operation type: | Unknown |
| Production size: | Yes |
| Development status: | Producer |
| MRDS | W025850 |
| DEP | 10111200 |
| Reference | {Deposit:: CALIF. JOUR. MINES & GEO. V.46, NO1, JAN. 1950, PP.81-82.}{Deposit:: ALSO FOUND IN SEC. 26.} |
| Reporter | Unknown |