Toltec Mounds in Arkansas

Toltec Mounds Archeological State Park

A National Historic Landmark, the Arkansas Toltec Mounds site located in Lonoke County between the towns of Scott and Keo comprises one of the largest and most impressive archeological sites in the Lower Mississippi River Valley. The park preserves Arkansas's tallest American Indian mounds. Three mounds remain where 18 once stood surrounded by an earthen embankment 8 - 10 feet in height, a portion of which is still visible today. The two tallest mounds once stood 49 and 38 feet tall, astounding since the mounds were built one basket of dirt at a time. These ancient earthworks are the remains of the ceremonial and governmental complex which was inhabited here from A.D. 650 to 1050. Mound groups like this one were religious and social centers for people living in the surrounding countryside. The Toltec Mounds site had a small number of residents who were primarily political and religious leaders of the community and their families. 

The largest mound still remaining

There are no clues as to why the site was abandoned or what happened to the native Americans who built it.

Mound Lake is next to the mounds (you can see one in the background here)
and contains a large population of Cypress trees