This site is the center piece of the University of Kentucky's Adena Park and is located on a bank 75 feet (23 m) above Elkhorn Creek. It is a perfectly circlular 105 feet (32 m) diameter platform, surrounded by a 45 feet (14 m) wide ditch and a 13 feet (4.0 m) wide enclosure with a 33 feet (10 m) wide entryway facing to the west. In 1939 the site was excavated by William S. Webb and the Works Projects Administration. They discovered the remains of a 97 feet (30 m) diameter circular wooden structure on the platform, which Webb speculated was a ceremonial center for a nearby clan. In 1936 the site and 6 acres (24,000 m2) were paid for through private dontations and transferred to the Kentucky Archaeological Society. It is currently owned and operated by the University of Kentucky as part of the Campus Recreation Department.
The earliest occupation at this site is 300 to 200 BCE and is considered to be a pre-Adena site for harvesting and processing galena, which occurs naturally nearby. At this time the site had an earthen enclosure and a palisade and later a 2 meter deep ditch.Rafinesque described the site as a twenty sided icosogonal polygon 3,767 feet (1,148 m) long with a 15 feet (4.6 m) wide 4 feet (1.2 m) to 8 feet (2.4 m) deep ditch surrounding it. An entryway to the enclosure was located to the south.