Trail Running calendar near Butte 2026-2027

The Rut Mountain Runs is a multi distance mountain running weekend in Big Sky, Montana in September 2026. Events range from a free 1K Runt Run to a 52.5 mile Trifecta with substantial elevation gain and a Lone Peak vertical kilometer.

Experience a historic re-enactment through the rugged trails of Missouri Headwaters State Park. This unique 7.5 mile run features deep mud, river crossings, and wild Montana terrain for a limited field of 300 participants.

Timed running events on a 1.5 mile loop at Gallatin Valley Regional Park in Bozeman, Montana. Options include 24 hour, 12 hour, and 4 hour races with one aid station and crew access.

Celebrate the 50th anniversary of this classic trail race in Helena. Experience 1,300 feet of elevation gain on single track trails with sweeping views of the Big Belt Mountains and downtown Helena.

An untimed 5k at Mt Ascension Gastropub in Helena that starts and ends at the taproom and includes a finish line craft brew plus post run music, games and giveaways. Ten percent of proceeds support local nonprofits.