On the eastern bank of Beaverdam Lake, the Evansville site originally had at least four earthen mounds, though only Mounds A and B remain today. When first recorded, Mound A had a two-tiered platform, with the west side roughly 18 feet tall and the east side somewhat shorter; it is now 12 feet tall at its highest point. Mound B is conical in shape and roughly three feet tall. Excavations in 2013 indicate that the mounds were built during the Mississippi Period, ca. AD 1200-1600.