Montana Trail Races & Ultramarathons
Montana has fewer trail races on the calendar: Le Grizz, a 50-mile ultramarathon along the North Fork Flathead River near Glacier National Park and one of the oldest 50-milers in the world (est. 1982), and the Yellowstone Half Marathon & 5K near Yellowstone's west entrance. Both sit near two of the country's most iconic national parks.
FAQ
What is the best Montana trail race for beginners?
The Yellowstone Half Marathon & 5K near West Yellowstone — a defined shorter distance built for a broad range of fitness levels, paired with a national park trip.
What is Le Grizz?
A 50-mile ultramarathon along the North Fork Flathead River near Glacier National Park, established in 1982 — one of the oldest 50-mile footraces in the world and the first ultramarathon held in Montana.
Do you need bear safety gear for Montana trail races?
For Le Grizz specifically, yes — the course runs through active grizzly habitat near Glacier National Park. Carry bear spray, know how to use it, and check current advisories before race week.
When is trail racing season in Montana?
Based on what's currently on the calendar, October and June — too few races yet to call that a real seasonal pattern rather than a coincidence of these two specific events.
Are there masters (40+) divisions at Montana trail races?
Check each race's official rules page — with only two events on this page, it's worth confirming brackets directly with the organizers rather than assuming a standard format.