Broedel, Carl Huntington <br/><br/>
Preliminary geologic map showing iron and copper prospects in the Juncos quadrangle, Puerto Rico 
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. 
, Scale 1:20,000. 
 - Washington, D.C.  United States Geological Survey  1961. 
 - 1 map  col.  69 x 66 cm. on sheet 118 x 81 cm. 
 - Miscellaneous geologic investigations map / United States Geological Survey  I-326 .
 - Miscellaneous geologic investigations map (Geological Survey (U.S.)  I-326 .
<br/><br/> Includes text and two tables on sheet. 
<br/><br/>Includes bibliography. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Maps.--Puerto Rico--Juncos quadrangle<br/>Copper ores--Maps.--Puerto Rico--Juncos quadrangle<br/>Iron ores--Maps.--Puerto Rico--Juncos quadrangle
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Juncos,P.R--Maps.<br/>Puerto Rico