Map shows eastern route of Heinrich Balduin Mollhausen across the southwestern United States from the Mississippi River to the Pacific Coast during 1853 and 1854. Areas of Native American habitation, military posts, and settlements are noted. Insets: [Map of the mid-western states] and "Profil fra Ft. Smith til Sydhavet" [More of Ft. Smith to the Southern Ocean]. Scale [1:6,015,000].

Map shows mid-nineteenth century cities, towns, ports, transportation routes, mileage scales, and geography of south-central United States. Relief shown by hachures. Scale [ca. 1:3,980,000].

Map shows islands and bays along the coast of the Gulf of Mexico from just south of the Rio Grande to the tip of Florida, Key West, and the Dry Tortugas; temperature readings east and south of the Mississippi River delta on inset map. Insets: [fifteen profiles of sections of seabottom for the Gulf of Mexico along lines shown on the main map]. Depths shown by soundings and by profile. Scale [ca. 1:2,400,000].