Le Grizz Ultramarathon

Polebridge, United States • 11 Oct 2025

Le Grizz Ultramarathon is a renowned 50-mile race held annually in October near Glacier National Park, Montana. Established in 1982, it is one of the oldest ultramarathons in the world. The event features not only the ultramarathon but also a relay option, as well as 10K and 5K races, catering to various skill levels. Participants enjoy scenic views along gravel roads that run parallel to the North Fork of the Flathead River, with an elevation gain of approximately 2,300 feet. The event promotes community engagement and outdoor education, with post-race festivities including food and local brews. Visit the organization's website for the most recent information.

Race information

50 mi
50 Mile Ultramarathon
10 km
10k
5 km
Relay
Visit the organization's website for the most recent information.
Trail runs nearby

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