Relief shown by shading. Title from panel. "*GPO: 2005-310-394/00339." Includes text and col. ill. Text, historic West trail map, and ill. (some col.) on verso. 1 map : col. ; 9 x 21 cm., on sheet 40 x 21 cm., folded to 10 x 21 cm.
Depths shown by soundings. Includes text, diagrams, and an ancillary map of "Map Showing the Proposed Ocean Telegraphs and Overland Route Round the World." Stamped in blue in lower left corner: 996. DLC LC Luso-Hispanic World, 4 1 atas ( leaves) : hand color ; 18 x 39 cm, on sheet 80 x 56 cm