Harriman 25K/50K Trail Run
Island Park, United States • 23 Aug 2025
The Harriman 25K/50K Trail Run, held annually at Harriman State Park near Island Park, Idaho, offers a scenic and well-curated trail running experience. The event features three distances: an 8.1-mile race, a 25K, and a 50K (two laps of the 25K course). Runners enjoy beautiful single-track trails through forests and meadows with stunning views of the Teton Mountains and local valleys, alongside abundant wildlife.
Aid stations provide a variety of refreshments and treats, visited multiple times depending on the race distance. Post-race festivities include a relaxed meal by the Henry’s Fork River. The race limits entries to 125 runners to maintain an uncrowded, wilderness atmosphere. Visit the organization's website for the most recent information.