The Web Site for the Old Stone Fort State Park in Manchester, TN states that it is a 2000-year-old American Indian ceremonial site located alongside the Duck River. It also states that the facility is approximately 1-1/4 miles around the perimeter and encloses approximately 50 acres.
The archaeology of the site is undoubtedly interesting but what drew me were the water falls. I have been twice to photograph the water falls and they are really beautiful in places.