| Lat / long: | 33.25835, -116.94255 |
| Primary: | Gemstone, Niobium (Columbium), Beryllium, Tantalum |
| Operation type: | Unknown |
| Deposit type: | PEGMATITE |
| Production size: | Small |
| Development status: | Producer |
| MRDS | D001783 |
| DEP | 60000262 |
| Reference | HANLEY, J. B., 1951, ECONOMIC GEOLOGY OF THE RINCON PEGMATITES, SAN DIEGO COUNTY, CALIFORNIA, CALIF. DIV. MINES SPEC. REPT. 7 - B |
| Reporter | PARKER, RAYMOND L. |