A 20-minute film which recounts the campaign is shown on the hour and half hours, beginning at 8:05 am. The last film begins at 4:30 pm and the theater will seat 125 people. Guided tours are available and reservations are recommended. The park commemorates the campaign, siege, and defense of Vicksburg in 1863 and includes over 1,340 monuments, markers and plaques, a 16-mile tour road, a restored Union gunboat, and a National Cemetery. Vicksburg National Cemetery embraces 116 acres, and holds the remains of 17,000 Civil War Union soldiers, a number unmatched by any other national cemetery. CDâs are available at the Visitors Center, where life-sized exhibits and artifacts from the Siege of Vicksburg are on display.