prepared especially for the National Geographic magazine. "Lambert conformal conic projection with two parallels." Relief shown by bathymetry, spot heights and gradient tints. Insets: Guantanamo Bay, Cuba; ca. 1:400,000.--Porto Rico and the Virgin Islands; ca. 1:1,300,000.--The Panama Canal and the Canal Zone (with cross-section showing extent of canal excavation); ca. 1:500,000.
Creator:
National Geographic Society (U.S.), Cartographic Division.
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