Mystery Mountain Marathon & 12-Miler

Chatsworth, United States • 12 Oct 2025

The Mystery Mountain Marathon & 12-Miler is an annual trail running event held at Fort Mountain State Park near Chatsworth, Georgia. The race offers two distances: a challenging marathon with approximately 5,500 feet of elevation gain and a 12-mile trail run. Participants traverse rugged, technical single-track, mountain bike, and horse trails, enjoying stunning panoramic views of fall foliage and the historic rock wall atop Fort Mountain. The event emphasizes a friendly, low-key atmosphere, culminating in a lakeside celebration. Located about 90 miles north of Atlanta, the race attracts trail runners seeking a scenic and demanding mountain experience. Visit the organization's website for the most recent information.

Race information

26 mi
5500 m+
Marathon
12 mi
12-Miler
Visit the organization's website for the most recent information.
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