Sundown Mounds

Sundown Mounds is a multimound archaeological site in Tensas Parish, Louisiana from the Early Coles Creek culture. It is the type site for the Sundown Phase (600-800 CE) of the Tensas Basin and Natchez Bluff Coles Creek chronology.

Description
The site is located on the western bank of Little Choctaw Bayou and has three platform mounds that form a triangle surrounding a plaza, a typical Coles Creek arrangement. Mound A, the largest mound, is an 11 ft in height and its base measures 190 ft by 180 ft and a summit measuring 60 ft by 60 ft. Mound B, the second largest, is located 400 ft to the northwest of Mound A. It is 8 ft in height with base measurements of 130 ft by 100 ft and its summit 65 ft by 33 ft. Mound C is 7 ft with base measurements of 100 ft by 80 ft with a dome-shaped summit. Mounds A and B had ramps from their summits down to the plaza. The mounds were constructed sometime between 750 and 800 CE, but the site was occupied during most of the Coles Creek period from 700 to 1200.