| 1. ||New sectional map of the state of Illinois : compiled from the United States surveys. Also exhibiting the internal improvements, distances between towns, villages & post offices; the outlines of prairies, woodlands, marshes &c. ||Illinois; Maps ||Relief shown by hachures.; Prime meridian: Washington.; Insets: Vicinity of Galena, the lead region; Vicinity of Alton & St. Louis.; Includes explanation of "Public lands" and "Land districts."