Over half are Civil War maps, many of them showing army positions. Other topics include the area of the Crimean War, mining areas, public surveys of various states and the Mexican border, and railroad routes or areas of proposed routes.
All maps are one sheet unless otherwise noted.
Co. Shows proposed route of cable from San Francisco via Honolulu and Yedo, Japan, to Shanghai. Includes cable distance in nautical miles. Co. Includes distance in nautical miles of Cyrus Field's proposed cable route between United States and China. Map is badly damaged. 55, 33rd Congress, 2nd Session.