| Reference | {Deposit:: COX, DENNIS P., AND BRIGGS, REGINALD P., 1973, METALLOGENIC MAP OF PUERTO RICO: U.S. GEOLOGICAL SURVEY, MISCELLANEOUS GEOLOGIC INVESTIGATIONS MAP I-721, ACCOMPANIED BY EXPLANATORY PAMPHLET, 6 P.}{Deposit:: GLOVER, LYNN, III, AND MATSON, P.H., 1973, GEOLOGIC MAP OF THE RIO DESCALABRADO QUADRANGLE, PUERTO RICO: U.S. GEOLOGICAL SURVEY MISC. INV. MAP I-735, SCALE 1:20,000.} |