Trail Running calendar near Three Forks 2026-2027

A 12 hour night trail event near Helena, Montana featuring repeated 100% singletrack figure 8 loops on Mount Ascension and Rodney Ridge, limited to 75 runners with a staffed aid station and volunteer support.

A 14 km single-track trail race on a completed section of the Continental Divide Trail near Butte Montana. The time trial start reduces congestion and proceeds support local trail work and youth running programs.

A trail ultramarathon near Bozeman offering 30K and 55K routes with about 11,000 feet of climbing. The course is all singletrack with minimal aid, drop bag support, a field cap, and no-refund registration policy.

A *100 mile* loop near Butte, Montana on June 26-27, 2026 that includes 63 miles of the Continental Divide Trail, nearly 14,000 feet of vertical, high-elevation terrain, and a published 40 hour cutoff; proceeds support local trail and healt..

Trail races at Bridger Bowl on June 27 include a technical 20K and a two loop 5 Mile junior race; both use chip timing and include a catered lunch and awards, with cupless aid stations on course.

A community race in Bozeman on July 4, 2026 with 1K, 5K and 10K options plus virtual entries; proceeds support adults with developmental disabilities.

Experience a point to point trail race on the Bangtail Divide Trail near Bozeman Montana. This 38 km event takes runners from Stone Creek to Brackett Creek through mountain landscapes with a field limited to 150 participants.

The Diamond City Mountain Relay will take place in Townsend from Friday 10 July 2026 to Sunday 12 July 2026. You can run 215 miles.

Remote mountain routes near Bozeman, MT with 25 mile and 50 mile options across alpine ridgelines. Limited course support and recommended donations support local trail organizations.

A multi-distance trail race in Big Sky, Montana on July 12, 2026 centered at Big Sky Events Arena. Courses range from about 15 mile with roughly 2100 feet of climbing to 6.2 mile and 3.1 mile options through Uplands and Hummocks.

Trail out and back races near Kading Campground with 15 km and 30 km options, creek crossings and mountain views. Post-race food, beverages and prizes are available.

A July 18, 2026 Bozeman event offering a **10-mile** trail loop with 2,838 feet of climbing and a **5 km** rolling dirt road fun run, plus a post-race BBQ, beer, and raffle prizes.

A 100 mile trail race through the Crazy Mountain Range from Wilsall to Lennep, Montana on July 24-25, 2026, passing Apsaalooke lands, jagged cliffs, scree fields, and high alpine lakes with live tracking and family ranch host sites.

Trail race near Butte, Montana on the Continental Divide offering 25K and 50K routes with historic railroad sections, marked and chip timed course, aid stations, finish refreshments, and participant medals and race items.

Trail races in the Elkhorn Mountains near Helena, MT with 50 Mile, 50K and 13.1 Mile options on remote, rocky single track and primitive roads, substantial elevation gain, multiple aid stations, and possible wildlife encounters.

A backyard ultra on private ranch land in Clancy, Montana, where runners complete repeated 4.2 mile loops each hour until one runner remains; the final winner receives a 10,000 USD prize.

A remote roughly 20 mile ridge trail race near Bozeman, Montana, run by volunteers with a lottery limited field. The route is technical and exposed; aid stations are volunteer staffed and participants must carry a water vessel.

The Augúst, Montana's second oldest footrace, holds its 58th running in Helena on August 20, 2026. A 5K trail race presented as a minimalist fundraiser for local high school cross-country teams.

A three-day mountain running event at Big Sky Resort in Big Sky, Montana on September 11 to 13, 2026, featuring distances from a 1 km kids run to a 50.6-mile Trifecta; registration opens January 6, 2026.

Trail races and a kids run at Eagle Creek Campground near Yellowstone on 12 September 2026. Courses include a 9k with 1000 feet of climb, a 5k with 400 feet of climb, and an untimed 5k walk.