4 Maps of Mississippi. Map of Haines Bluff, Mississippi, showing the positions
of the attacking Gunboats; Map of Vicksburg and Vicinity; Map of Yazoo River
Defenses at Walnut Hills near Vicksburg, Mississippi, occupied by the U.S.
Naval Forces; and Survey of A Canal Connecting Walnut Bayou with the Mississippi
River, dug by the U.S. Forces under General Grant.