The Gahagan Site is located on the western side of the Red River, about half way in between Natchitoches and Shreveport. It was once located on an relict river channel, but much of the site has been destroyed by the meandering of the river.[4] The site was occupied between 900 and 1200 CE.[1] It consisted of a platform mound, a cone shaped burial mound, and a habitation area surrounding a centrally located plaza, with another small mound located about a quarter mile away.[4]