| Lat / long: | 37.51492, -120.39849 |
| Primary: | Gold |
| Secondary: | Platinum |
| Tertiary: | Iridium, Osmium, Ruthenium, Rhodium, Palladium |
| Ore: | Gold |
| Orebody form: | STREAM SEDIMENT DEPOSITS |
| Operation type: | Unknown |
| Deposit type: | Stream Placer |
| Production size: | Small |
| Development status: | Producer |
| Production years: | 1907-1919, 1929-1942, 1946-1952 |
| First production started: | 1848 |
| Last production ended: | 1952 |
| Host rock: | Ione Formation |
| Host type: | Gravel |
| Tectonic: | Base Of Sierra Nevada Foothills |
| MRDS | M045328 |
| DEP | 10109537 |
| Reference | {Deposit:: LOGAN, C.A., 1919, PLATINUM AND ALLIED METALS IN CALIFORNIA: CALIFORNIA STATE MINING BUREAU BULLETIN 85, P. 33-34.}{Deposit:: CLARK, W.B., 1970, GOLD DISTRICTS OF CALIFORNIA: CALIFORNIA DIVISION OF MINES AND GEOLOGY BULLETIN 193, P. 120-121.}{Deposit:: MERTIE, J.B., JR., 1969, ECONOMIC GEOLOGY OF PLATINUM METALS: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 630, P. 94, TABLE 40.}{Deposit:: CLARK, W.B., 1970, PLATINUM: CALIFORNIA DIVISION OF MINES AND GEOLOGY MINERAL INFORMATION SERVICE, V. 23, NO. 6, P. 115-123.} |
| Reporter | Blair, Will N., Peterson, Jocelyn A. |