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Le Grizz Ultramarathon

Polebridge, United States • 11 Oct 2025

Le Grizz Ultramarathon & Relay takes place near Glacier National Park in Polebridge, Montana. The event offers a 50-mile ultramarathon, a 50-mile relay, plus a 15K and a 5K race, appealing to serious and recreational runners alike. The course runs on gravel roads along the North Fork of the Flathead River, rewarding efforts with views of the Crown of the Continent and the seasonal colors of aspen and larch. Since its 1982 origins, the course has shifted with North Fork Road construction, with the 2025 start/finish planned at the Polebridge Mercantile. Finish-line celebrations feature fried chicken, Montana beer, and huckleberry bear claws. Visit the organization's website for the most recent information.

United States Montana Polebridge

Race information

Website Registration
50 mi
2300 m+
50 Mile Relay
50 mi
2300 m+
50 Mile Ultramarathon
15 km
15k Run
5 km
5k Run
Visit the organization's website for the most recent information.
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