Mystery Mountain Marathon & 12 Miler Chatsworth, GA   Oct 18, 2026

The Mystery Mountain Marathon & 12 Miler traverse difficult, sometimes technical but stunningly beautiful trails, featuring panoramic views of fall foliage displayed on the surrounding mountains. Climbing and descending for about 5,500 feet of elevation gain, runners will enjoy single track, rugged mountain bike, and smooth horse trails while running over and around Fort Mountain, passing the mysterious rock wall built at the top of the mountain over 1,000 years ago. But the highlight of the weekend, as always, will be hanging out by the lake with friends old and new after the race at our fun, low-key celebration.

The event is located at gorgeous Fort Mountain State Park, approximately 90 miles north of Atlanta and 50 miles southeast of Chattanooga.