Map of the country between Monterey, Tenn: & Corinth, Miss: showing the lines of entrenchments made & the routes followed by the U.S. forces under the command of Maj. Genl. Halleck, U.S. Army, in their advance upon Corinth in May 1862: Surveyed under the direction of Col. Geo. Thom, A.D.C. & Chief of Topl. Engrs., Department of the Mississippi, by Lieuts. Fred. Schraag and C. L. Spangenberg, Asst. Topl. Engrs. and drawn by Lieut. Otto H.Matz , Asst. Topl. Engr.