Blowup map of Yazoo River Defenses at Walnut Hills near Vicksburg, Mississippi; occupied by the U.S. Naval Forces May 20, 1863.
Image ID: cgs05233, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection Location: Mississippi, Vicksburg Photo Date: 1863 Credit: NARA C&GS Colllection Category: Coast and Geodetic Survey/Archive/ • High Resolution Photo Available
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