 She provided support for the joint attacks of December 1862 above the city, and remained in the area until the Confederate stronghold fell in July 1863.Following the fall of Vicksburg, "Great Western" continued her duties as supply ship for the squadron, being stationed at Skipwith's Landing, Mississippi, and Goodrich's Landing, Louisiana.In July 1864 she was sent back to Cairo, Illinois, to act as a receiving ship.