Trail Running Calendar Montana 2025-2026

The Bangtail Divide 38k is a trail running event held in Bozeman, Montana. The race covers a distance of 38 kilometers along the Bangtail Divide Trail (Trail number 504), starting at Stone Creek and finishing at Brackett Creek. Registration is limited to 150 participants on a first-come, first-serve..

The Herron Half Marathon Trail Run, held annually at Herron Park in Kalispell, Montana, features a half marathon, 10K, and 5K trail races, along with a kids' race. Now in its 13th year, the event takes place on the scenic Herron Park trail system, part of the 34-mile Foy’s to Blacktail Trails. The r..

The Devil's Backbone 50 Mile & Relay is a challenging ultramarathon held in the remote Gallatin National Forest near Bozeman, Montana. The race features a single 50-mile course with over 10,000 feet of elevation gain, traversing high mountain ridges and valleys with technical single-track trails, st..

Run With The Wild is a family-friendly running event held at Seeley Creek Trails in Seeley Lake, Montana. The event features three fun run distances: a 10K trail run, a 5K, and a 1K, accommodating runners of all ages and abilities. The 10K trail run starts first, followed by the shorter distances.Pa..

The Foy's to Blacktail Trail Marathon is a challenging 26-mile point-to-point mountain race held in Kalispell, Montana, showcasing the newest trails in the Foy's to Blacktail Trail system. Featuring an all-single track course with over 5,000 feet of vertical gain, runners climb 2,800 feet in the fir..

The Jim Bridger Trail Run & Roller Ski Races take place in Bozeman, Montana, featuring a 5K and a challenging 10-mile trail run with 2,838 feet of elevation gain. The 10-mile course offers scenic views, including climbs through Middle Cottonwood and Sypes Canyon, crossing private land accessible onl..

The Little Blackfoot is a trail running event held near Elliston, Montana, offering 30K and 15K distances. Both races start at the Little Blackfoot Meadows trailhead near Kading Campground and follow an out-and-back course. Runners begin together, crossing two wooden bridges over a creek before reac..

The Crazy Mountain 100 is a challenging 100-mile ultramarathon held in Montana's rugged Crazy Mountain Range. Starting at Westling Ranch in Wilsall and finishing at Berg Ranch near the ghost town of Lennep, the point-to-point course features approximately 23,000 feet of vertical gain, reaching eleva..

The Yellowstone Trail Race, held near West Yellowstone, Montana, offers a scenic trail running experience just outside Yellowstone National Park. Participants can choose from three distances: 50K, 25K, and 10K, all starting and finishing at the Rendezvous Ski Trails within the Custer Gallatin Nation..

HURL Elkhorn is a challenging trail running event held in the rugged Elkhorn Mountains near Helena, Montana. It offers three race distances: a 50-mile ultra, a 50K, and a 13.1-mile half marathon, all featuring technical single-track trails, primitive jeep roads, and forest service roads with no pave..

The Divide Mountain Run, held in Babb, Montana near Glacier National Park, offers an exhilarating trail running experience with three race distances: 5k, 10k, and a challenging 21k that culminates in a summit scramble to the peak of Divide Mountain. Participants traverse rugged alpine terrain featur..

The Copper City 12/24 Hour Run, held in Three Forks, Montana, is an endurance running event featuring a scenic, relatively flat one-mile double track loop. Participants can choose to run for 12 or 24 hours, aiming to cover as many miles as possible. The course offers beautiful views of mountain rang..

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 3rd Annual Swift Bear Trail Run takes place in Hays, Montana, featuring challenging trail races in the scenic Mission Canyon area. The event offers three distances: a 10 Mile run, a 20 Mile loop through mountainous terrain with track roads, gravel, and some pavement, and a newly added 50K ultram..

The Nitty Gritty Off Road Race is an annual trail running event held at Red Lodge Mountain Resort in Red Lodge, Montana. Featuring a challenging course with significant elevation gain, the race includes solo half marathon, full marathon, a hot lap of about 4.3 miles, and relay options for teams of 2..

The Augúst is Montana's second oldest footrace, held annually in Helena at the Spring Meadow Resources Pavilion. Celebrating its 57th running, this minimalist 5k trail race is known for its flat and fast course, attracting both youth (0-19) and adult (20+) runners. The event emphasizes tradition and..

The Dark Knight Trail Run, also known as the "Goats in the Dark 5k," is a unique night trail race held on Helena’s west side trails in Montana. This family-friendly event takes place in late August, offering runners pleasant nighttime temperatures and scenic sunset views before darkness sets in. The..

Goats In The Dark is a nighttime 5k trail race held in Helena, Montana, starting at LeGrande Cannon Blvd and Silverette St. The course features a scenic route along LeGrande Cannon Blvd to Tubbs Trailhead, then ascends switchbacks onto Mount Helena's western trails, including Swaney, Diretissima, an..

The AIDSPIRIT USA Marathon, held in Harlowton, Montana, is a scenic race starting in the Little Belt Mountains within Lewis & Clark National Forest and finishing in historic Harlowton. The event features a full marathon, half marathon, 10K run, and 5K fun run, all on compacted, calcium chloride-trea..

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..