After the retreat of General Hood, the Thirty-third was assigned to guarding the transportation train to Savannah, Tenn., Company F proceeding to that point and Company E to Grand View, rejoining the regiment at Eastport, Miss. Thereafter the regiment was ordered to the department of the Gulf, and went to New Orleans, thence to Dauphin Island, Cedar Point, Spanish Fort, Blakely, Montgomery and Selma, Ala., Jackson, Big Black River Bridge and Vicksburg, Miss., Cairo to Madison, where it arrived on August 14, 1865, and was paid off and mustered out of service September 1, 1865.