Reference | {Deposit:: ROGERS, C.L., 1977, GEOLOGIC MAP OF THE PUNTA GUAYANES QUADRANGLE, SOUTHEASTERN PUERTO RICO: U.S. GEOLOGICAL SURVEY MISCELLANEOUS INVESTIGATIONS SERIES MAP I-998, SCALE 1:20,000.}{Deposit:: FILES OF THE CORTEZA TERRESTRE (SURFACE MINING PERMITS OFFICE), PUERTO RICO DEPARTMENT OF NATURAL RESOURCES, 1991.} |