This disbound Senate volume contains a significant untitled map of the United States that shows the new borders with Mexico and Canada and identifies army posts, old army posts, land transportation routes, and river/ocean transportation routes. A line from the mouth of the Sabine River in Louisiana north to Lake Superior indicates the "Extreme Limit of Line of Frontier Stations in 1845." Stations to the east of this line were primarily accessible by steamboat and railroads while stations to the west of the line were reached by wagon only. The famous "March of the Rifle Regiment in 1849" from Ft. Leavenworth to the Columbia River is also depicted. Wheat quotes the Cross' original report stating "The accompanying map will show more clearly than any written statement possibly can, the great difference between the country occupied by the troops on the 30th of June, 1845, and at the present time."

The map is still bound into the 364-page disbound Report of the Secretary of War, including papers on the military and Indian affairs of Texas, New Mexico, California, Oregon and Florida. Of particular interest is Captain French's report of an expedition across Texas from San Antonio to El Paso (which took 49 days), and the Quartermaster General report that is noteworthy for highlighting the problems, deficiencies and costs of connecting and defending the vast lands acquired from Texas and Mexico since 1845 (which the map demonstrates). Disbound, housed in archival paper covers.

References: Wheat (TMW) #727.

Condition: B+

The folding map has pleasant light toning and faint offsetting. Disbound text is lightly toned.