Firewater Ultra Greenback, TN   Oct 24, 2026

The Firewater 100K, 50K, Relay and Ruck all take place on the East Lakeshore Trail on the east coast of the Tellico Reservoir. Firewater was the first event to utilize this trail system end-to-end. We have The Watershed Association of the Tellico Reservoir (WATeR) to thank for these wonderful, well-maintained, and very runnable trails.

The 100K (for years the only 100K trail race in Tennessee) runs the entire length of the trail out and then back. The 50K will start at the northern end (where the 100K turns around) and run back to the finish line. The 50K Relay will have you and a friend each running half of the 50K course. We recently added the ‘Sunset’ option for the 50K: Now you can choose to start at 8:30am (the ‘Sunrise’ option), or at 2:30pm (the ‘Sunset’ option) so you can start later in the day and catch the gorgeous sunset over Tellico Lake. The 25K Ruck option runs the second half of the course to the finish.