Fort Mountain & Carters Lake — Ancient Wall, Fire Tower & Clear Water

An hour south of Chattanooga the Blue Ridge begins to gather itself into real mountains, and Fort Mountain State Park sits atop the first great ridge with a genuine archaeological mystery on its summit: an 855-foot-long serpentine wall of piled stone, older than any written record, whose builders and purpose no one can fully explain. From the same summit a squat stone fire tower built by the Civilian Conservation Corps in the 1930s gives a 360-degree sweep across the North Georgia mountains. Down the western flank lies Carters Lake, the deepest reservoir in Georgia — cold, clear, and fjord-like, wedged into steep forested coves. This one-day loop links the ancient wall and the tower with a lakeside walk and an easy waterfall, bookended by mountain-town cooking in Chatsworth and Ellijay.