This park is famous for its 850 foot stone wall, a structure that varies in height from two to six feet in height (it was probably taller in its original state), and whose builders are . . . unknown. Estimates for the time of construction range from 500 BC to 1500 AD. Hence, the wall is a source of much fascination and speculation for visitors. The Web site listed here provides a lot of interesting information about the wall and the park in general. The Web site reveals that Fort Mountain doesn't have a monopoly on mysterious wall building--there are other Georgia towns with similar structures.