Preliminary geologic map showing iron and copper prospects in the Juncos quadrangle, Puerto Rico Puerto Rico. Geology. 1961 Geologic map showing iron and copper prospects in the Juncos quadrangle, Puerto Rico Juncos quadrangle, Puerto Rico Broedel, Carl Huntington creator Puerto Rico Economic Development Administration. Geological Survey (U.S.) text abstract or summary dcu Washington, D.C United States Geological Survey 1961 monographic eng
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1 map col. 69 x 66 cm. on sheet 118 x 81 cm. by Carl H. Broedel ; prepared [by the United States Geological Survey] in cooperation with The Commonwealth of Puerto Rico, Economic Development Administration, Industrial Research Department. Includes text and two tables on sheet. Includes bibliography. nwpr--- Scale 1:20,000. Geology Puerto Rico Juncos quadrangle Maps Copper ores Puerto Rico Juncos quadrangle Maps Iron ores Puerto Rico Juncos quadrangle Maps Juncos,P.R Maps Puerto Rico Miscellaneous geologic investigations map (Geological Survey (U.S.) I-326 FRL 830809 20240725062703.0 130650