Relief shown by bathymetry, spot heights and gradient tints.; Shows steamship routes and U.S. consular offices and agencies.; Insets: Guantanamo Bay, Cuba; approximately 1:400,000.--Porto Rico and the Virgin Islands; approximately 1:1,300,000.--The Panama Canal and the Canal Zone (with cross-section showing extent of canal excavation); approximately 1:500,000. 60 x 107 centimeters Scale 1:5,500,000 General Map Collection