The 52nd Georgia was stationed at the far left position of Barton’s brigade, Stevenson’s Division. Barton’s brigade held the bottom right end of the siege line which ended at South Fort at the Warrenton Road overlooking the Mississippi River. The 52nd’s position was approximately one mile NE from South Fort.

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May 18-July 4, 1863 Siege of Vicksburg, Mississippi The city of Vicksburg was shelled around the clock by Union army and naval batteries. But sickness and starvation were the biggest problems. Barton's Brigade, containing the 52nd Georgia, occupied the riverfront and the fortifications on the right side of the Confederate line (South of the city of Vicksburg).
http://camp1633.scv.org/regiments/styled-4/index.html