Course of the River Mississippi, from the Balise to Fort Chartres: Taken on an Expedition to the Illinois, in the latter end of the Year 1765.

Course of the Mississippi River from the Balise to Fort Chartres based on surveys made by the French. Surrounding geographic features are noted with relief shown pictorially.
Date: June 1, 1775
Creator: Ross, Lieutenant
System: The UNT Digital Library

Map of Texas and part of New Mexico

Map of most of the state of Texas and some of the surrounding areas, including parts of New Mexico, Oklahoma, Arkansas, and Louisiana. It includes markings for roads, major cities, bodies of water, and and some geographic features, with relief shown by hachures. Prime meridian: Greenwich. Includes list of authorities, coordinates of selected locations, and descriptive notes on various rivers.
Date: 1857
Creator: United States. Army. Corps of Topographical Engineers.
System: The Portal to Texas History

[Map of the Texas-Arkansas Border]

Hand-drawn map of the Texas and Arkansas border, detailing cities, counties, and rivers near the borders.
Date: unknown
Creator: unknown
System: The UNT Digital Library