Map shows political boundaries, shipping routes with distances, major cities and towns, Mexican states, and major railroads. Includes notes. Insets: "Guantanamo Bay, Cuba," "Porto Rico and the Virgin Islands," and "The Panama Canal and the Canal Zone (with cross-section showing extent of canal excavation)." Relief shown by bathymetry, spot heights and gradient tints. Scales [ca. 1:5,500,000], [ca. 1:400,000], [ca. 1:1,300,000], and [ca. 1:500,000].