Reference | {Deposit:: RAMP, LEN, 1961, CHROMITE IN SOUTHWESTERN OREGON: OREGON DEPT. GEOLOGY AND MINERAL IND. BULL. 52, 169 P.}{Deposit:: RAMP, L. AND PETERSON, N.V., 1979, GEOLOGY AND MINERAL DEPOSITS OF JOSEPHINE COUNTY, OREGON; ODGMI BULL. 100, 45P} |