Atlanta State Park is 1,475 acres on Wright Patman Dam in Cass County, a few miles southwest of Texarkana. Texas acquired the land in 1954 by Department of the Army License, with option to renew to 2054.
Caddo Indians, the most culturally advanced tribe in Texas, once made this area their home. The Caddos settled the area peacefully as farmers, unlike their nomadic and warlike brothers, the Apaches and Comanches. Excavations conducted by the Smithsonian Institute produced many graves and artifacts, and archaeologists found evidence of a house pattern with post molds still intact.