July ultramarathons in Tennessee, United States

Looped nighttime miles on runnable single-track dirt trails through cedar and hardwood forests along the Duck River, glowing with reflective markers

Flat, open field trail designed for speed, minimal obstacles, challenging heat, personal fueling spots, and a communal post-race food spread

Mountain trail ultramarathon in Cherokee National Forest with technical terrain, scenic views, and up to 19,000 feet of elevation gain