The new naval and military map of the United States by J. Calvin Smith. J. M. Atwood, map engraver. Entered according to Act of Congress in the year 1862 by Robert P. Smith. Stamped in right-hand corner: Copyright Library, Jan. 12, 1863. Source: Geography and Map Division, Library of Congress

General map of the United States, Mexico, and Central America showing national, state, and county boundaries, cities and towns, mail routes and wagon roads, railroads built and in progress, canals, and relief by hachures. Among its miriad items of information the map shows the Pony Express and Telegraph routes.

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