The Yellowstone 1/2 Marathon
- Running
- Half Marathon
- 50 km
- 25 km
- 10k
- 5k
Date: Saturday, Aug 23, 2025
Location: 3489 Green Canyon Rd, Island Park, ID
The Harriman Trail Races are expertly curated for both seasoned and new trail runners. Experience beautiful courses while enjoying a limited number of runners for an uncrowded wilderness feel.
The 25K course features beautiful trails, abundant wildlife, and scenic views. The 50K involves two laps of the same stunning route. The event includes a well-stocked aid station that participants will access multiple times.
As of now, registration is closed but will reopen on February 1, 2024.
Enjoy a meal with fellow runners and relax as you cheer on finishers.
Entry fee refunds are available up to 30 days prior to the race if the race is full.
50K Registration | $129.83 | See |
25K Registration | $109.14 | See |
8.1 Miler Registration | $64.86 | See |
Help us keep everything accurate. Report any issues with this event.