Aden Mounds consists of three mounds surrounding a rectangular plaza, with the fourth side open to Jeff Davis Bayou. Mounds A and B are rectangular platform mounds nearly 10 feet in height. Mound C is no longer visible, but archaeologists discovered its early stages beneath the current ground surface. Artifacts indicate that the mounds were constructed during the Coles Creek Period, about AD 850-1000, though the early stages of Mound C may date to the Middle Woodland period, about AD 200-40.
