Puerto Rico e islas limítrofes
"... impreso en 1952." Relief shown by contours and shading. Includes inset of "Distritos senatoriales." Available also through the Library of Congress Web site as a raster image.
Geological Survey (U.S.)
Puerto Rico, Bahía de San Juan
Relief shown by contours. Depths shown by contours and soundings. "Caution. This chart has been corrected from the Notice to mariners published weekly ..." Available also through the Library of Congress Web site as a raster image. Includes text, chronology of Columbus' voyages, tidal information, channel depth information, inset of "Columbus' voyage," ancillary map, and col. ill. "25670."
U.S. Coast and Geodetic Survey - Christopher Columbus Quincentenary Jubilee Commission