The Yellowstone Trail Marathon and Trail Races
Decision scores
Six 0–100 scores telling you, at a glance, who this race is for.
Best for
About the Race
You don't want to miss this spectacular trail run just outside of Yellowstone National Park! The West entrance and gateway to Yellowstone National Park is surrounded by three national forests, blue-ribbon trout streams, and beautiful mountain lakes. Come run a Marathon, Half Marathon,10K or 5K trail run with breathtaking scenery that takes place right outside the world's first National Park on the trails of Custer Gallatin National Forest. Click HERE for more information on the Bob Marshall T...
Course Profile
Course profile data unavailable for this race.
Course features
Accessibility & inclusion
Vibe & community
History & past results
Past finisher times and year-over-year participation will appear here once the organizer publishes them.
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Common questions
How hard is the The Yellowstone Trail Marathon and Trail Races Marathon?
We don't have a verified elevation profile yet — check the organizer's course map for the climb breakdown.
What should I wear?
Dress for ~10°F warmer than the standing temperature once you start running. Throwaway long-sleeve at the start, gloves and a hat for sub-50°F mornings, singlet plus visor when it climbs above 60°F. The race-day forecast above is the source of truth closer to the date.
When does it sell out?
No published deadline. Most races raise the entry fee in tiers and can sell out without warning — sign up early if you're committed.
Similar races worth a look
- More like this in this city: All Marathon races in West Yellowstone, MT
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- Same distance, statewide: All Marathon races in Montana
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