| Lat / long: | 38.7474, -120.93352 |
| Tertiary: | Chromium |
| Other material: | Bornite, Chalcopyrite, Gold, Magnetite, Pyrite |
| Discovery year: | 1870 |
| Operation type: | Surface |
| Development status: | Past Producer |
| First production started: | 1446 |
| MRDS | M007389 |
| MAS | 60170033 |
| DEP | 10115192 |
| Reference | {Deposit:: BENSON,W.T.,1948,PRELIMINARY REPTON LILYAMA COPPER-GOLD MINI}{Deposit:: EL DORADO CO.,CALIF.PP.7.AUBURY,L.E.,1908,THE COPPER RESOURC}{Deposit:: CALIF.,CALIF.MIN.BUR BULL.50,P.212-213.COX,M.W.,WYANT,D.C.,H}{Deposit:: ,GEOL.OF THE LILYAMA &PIONEER MINES,EL DORADO CO.,CALIF.MIN.}{Deposit:: T.144,P.43-47,1948.} |
| Reporter | Western Field Operations Center (WFOC) |