Vicksburg National Military Park was established in 1899 to preserve the site of the siege of Vicksburg and was placed under the jurisdiction of the War Department. In 1933, it was transferred to the National Park Service of the United States Department of the Interior. The park consists generally of the Confederate and Union siege lines, now Confederate and Union Avenues, and the area between. The park’s 30 miles of avenues and about 1,330 acres of federally owned land contain 128 artillery pieces and 1,600 monuments, markers, and tablets, as well as 17 State memorials.