| Lat / long: | 37.89801, -121.33272 |
| Primary: | Clay |
| Operation type: | Surface |
| Development status: | Unknown |
| MAS | 60770025 |
| DEP | 10262241 |
| Reference | {Deposit:: CALIF. JOUR. MINES & GEO. V.51, NO1, JAN. 1955, P.35-8,81, P}{Deposit:: V.51, NO.1, JAN. 1958, P.129; 55TH REPT. OF STATE MIN. 1959}{Deposit:: E. SIDE OF ROBERTS ISLAND; ALSO SECS.28,21.} |
| Reporter | Western Field Operations Center (WFOC) |