This series of maps are printed on a single sheet with Maps No. 12 (Texas) and No. 14 (Michigan & Wisconsin) on one side and Map No. 13 (Chief Part of the Western States) on the other. All of the maps include major cities, roads, and geographic levels (relief shown with hachures) and have the counties of each state drawn in and labeled. On the map of Texas, there are two insets: in the upper left corner, "Northern Texas on the same scale as the larger Map" and in the lower left corner, "Map of the Vicinity of Galveston City" which has a different scale. Scale [ca. 1:5,000,000] (W 103°--W 93°/N 34° --N 26°). Scale [ca.1: 3,200,000] (W 93°--W 82°/N 48° --N 42°). Scale [ca.1: 3,200,000] (W 96° --W 80°/N 43° --N 37°). Prime meridians: Washington and Greenwich.

Map shows proposed railroads primarily in the North Central United States and Canada; bullseye centering on Mackinaw City and the Great Lakes region and the Straits of Mackinaw connecting Lake Michigan and Lake Huron; Michigan counties, major cities and towns, and mineral resources. Inset: [Map showing proposed railroad connecting to James Bay]. Relief shown by hachures. Scale not given.

Map shows mid-nineteenth century Indiana township grid, counties, roads, canals, existing railroads and those in progress, cities, towns, and notable physical features. Scale [ca. 1:1,267,000].

Map shows mid-nineteenth century Iowa, Wisconsin, Michigan, Illinois, Indiana, Kentucky, and Missouri, Ohio, and parts of Minnesota, Nebraska and Kansas territories. Cities, towns, roads, proposed Pacific Railway routes, and locations of Native American tribes are noted throughout. No scale is indicated.

Map shows major cities and towns, state boundaries, rivers, and mountains for Minnesota, Wisconsin, Michigan, Ohio, Kentucky, Tennessee, Arkansas, Missouri, Illinois, Indiana, and Iowa.; the Great Lakes; railroads and nearby settlements for vicinity maps of St. Louis and Cincinnati. Relief shown by hachures. Scale [ca. 1:6,760,000].

Map shows counties, cities, towns, villages, post offices, canals, railroads, common roads, and marshes. Includes population figures by county for 1840 and 1850 census and "progress of population" from 1800 to 1850. Scale [ca. 1:1,267,000].

Map shows mid-nineteenth century township grid, railroads, canals, roads, counties, areas of Indian habitation, mining activity, cities, towns, and notable physical features in the upper mid-western United States. Scale [ca. 1:2,500,000].

Map shows major towns, counties, canals, and railroads in mid-nineteenth century Indiana, Ohio, Kentucky, and Tennessee. Includes population statistics and river lengths. Relief shown by hachures. Scale [ca. 1:4,000,000].

Map shows existent mid-nineteenth century Ohio and Mississippi Railroad railway routes in the northeast and upper mid-western United States. Scale not given.