Outline map of the northeastern and north-central states showing major drainage, relief by hachures in Ohio, place names, canals, and the railroad network. Chartered in 1848. Consolidated to form the Pittsburgh, Fort Wayne, and Chicago Railroad. See entry 534.
Outline map of the northeastern United States showing railroads in operation, under construction, and under proposal. Chartered in 1846 and consolidated April 1855 with the Northern Indiana Railroad under the name Michigan Southern and Northern Indiana Railroad.
Outline map with colored state boundaries of the northeastern and north-central United States indicating larger cities. Shows "finished," "in progress of construction," and "contemplated" railroads. Chartered in 1846 with first section opened in 1851.
Outline map of the northeastern and north-central United States showing the railroad network. "Comparative Distances by the Great Railway Routes of Ohio from Columbus to New York" are listed to the right of the map. Chartered February 8, 1847.