Old Stone Fort

Old Stone Fort is an archaeological site in Coffee County, Tennessee, where a stone and earthwork enclosure covers more than 20 hectares on a peninsula. The peninsula forms at the meeting point of the Duck River and the Little Duck River.

Native peoples from the Middle Woodland period built this complex between 80 and 550 AD, using stone walls that reached up to 6 feet (1.8 m) in height. The construction with dual-layer walls filled with gravel and soil developed over several centuries.

The site occupies a naturally protected peninsula where two rivers converge, creating steep cliffs on multiple sides. Visitors can walk along the preserved wall remnants and see how the builders adapted their work to the landscape.

A museum near the entrance displays artifacts and explanations about the prehistoric builders. Several walking trails lead along the wall remnants and offer views of the rivers and waterfalls.

Multiple waterfalls and rapids surround the peninsula and have carved deep gorges along both river boundaries over time. These natural barriers reinforced the protection of the site.

Location: Tennessee

GPS coordinates: 35.48278,-86.10778

Latest update: December 5, 2025 22:31