Labels:text | map | screenshot OCR: USGS science for a changing world Geology, Geochemistry, Geophysics, Mineral Occurrences, and Mineral Resource Assessment for the Commonwealth of Puerto Rico Editor: Walter J. Bawiec U.S. Geological Survey Open-File Report 98-38 2001 U.S. Department of the Interior Prepared in Cooperation with the Puerto Rico Departmant of U.S. Geological Survey Natural Resources and the University of Puerto Rico at Mayagüez
