Engraved in the Engineer Department. S. Geismar, lith. United States. Army. Corps of Engineers. CREATED/PUBLISHED Philada., Bowen & Co. lith.,  NOTES Scale ca. 1:18,200. Map shows the three lines of fortifications constructed in 1862, 1863, and 1864, streets, 'Mobile and Ohio Rail Road,' vegetation, drainage, and relief by hachures. Most of the streets are not named.