Trail Running calendar near Big Sky 2025-2026

The Prospector's 50k | 30k is a trail running event held in Cooke City, Montana, typically in early August. Named after the rugged prospectors of the 1860s, the race offers two distances: a 50-kilometer and a 30-kilometer course. Participants experience stunning mountain views and pass historic mini..

The Copper City 12/24 Hour Run is an endurance running event held in Three Forks, Montana. Participants run on a smooth, relatively flat one-mile loop of double track that offers scenic views of multiple mountain ranges, distant city lights, an old copper smelter, and farm animals. The course is des..

The Bridger Ridge Run will take place in Bozeman on Saturday 9 August 2025. You can run 20 miles.

The Harriman 25K/50K Trail Run, held annually at Harriman State Park near Island Park, Idaho, offers a scenic and well-curated trail running experience. The event features three distances: an 8.1-mile race, a 25K, and a 50K (two laps of the 25K course). Runners enjoy beautiful single-track trails th..

The Big Bear Stampede is a trail running event held at Eagle Creek Campground in Gardiner, Montana, near Yellowstone National Park. Scheduled for September 6, 2025, it features 5k and 9k trail races with scenic views of Electric Peak and other Yellowstone peaks. The 9k course includes 1,000 feet of..

The Rut Mountain Runs is a three-day mountain running event held at Big Sky Resort in Montana, scheduled for September 12-14, 2025. It features a variety of challenging races including a 50K, 28K, 21K, 11K, and the Lone Peak Vertical Kilometer, as well as a Trifecta challenge combining the 50K, 28K,..

The John Colter Run is a rugged 7.5-mile trail race held at Missouri Headwaters State Park near Three Forks, Montana. This classic event retraces the historic escape of John Colter from Blackfoot Indians, featuring a challenging course with about 1.5 miles on paved/gravel roads and 5.5 miles on roug..

The Yellowstone Gateway 30K is a scenic trail race held in Pray, Montana, covering just over 18 miles of off-road terrain. Starting at the Sage Lodge trails, the course features a challenging 10-mile uphill climb through Emigrant Gulch, followed by an exhilarating 8-mile downhill to the finish at Ch..

The Montana Meltdown is a fixed-time endurance running event held at Gallatin Valley Regional Park in Bozeman, Montana. Participants can choose from 24-hour, 12-hour, or 4-hour races, running on a scenic 1.5-mile loop course. The event offers a supportive atmosphere where runners can challenge their..

The Bobcat Trail Challenge at Crosscut is a trail running event held at the Crosscut Mountain Sports Center in Bozeman, Montana. The race features a challenging 5km cross-country ski loop course, with options to compete in 5k, 10k, or 20k distances. Participants can also join as part of a 2 or 4-per..

The Montana Cup is a team-based cross-country running event held at Gallatin County Regional Park in Bozeman, Montana. It unites runners from across Montana’s regions to compete for a traveling trophy. The race features separate categories for men and women, divided by age groups (under and over 40)..

The Pronghorn Pursuit Trail Run, held annually near Dillon, Montana, offers a scenic and challenging off-pavement experience through the sagebrush hills of the High Trails System. Participants can choose from a 15K trail run featuring 90% single-track with 2,400 feet of climbing, a 5K trail run with..