The Kolomoki Mounds is one of the largest and earliest Woodland period mound complexes in the Southeastern United States and is the largest in Georgia. Constructed from 350CE to 600CE, they are located in present-day Early County near the Chattahoochee River.The mounds were designated as a National Historic Landmark in 1964. Seven of the eight mounds are protected as part of Kolomoki Mounds State Historic Park.