Yellowstone Half Marathon

JUN
11-12
2027
A trail‑focused half marathon and 5K near West Yellowstone that mixes town streets with rugged dirt forest roads, technical sections, aid stations, and cup free sustainability practices.
11-12 Jun 2027
13 miles Half Marathon 5 kilometers

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Yellowstone Half Marathon

The Yellowstone event weekend in West Yellowstone, Montana includes a half marathon (13.1 miles) and a 5K (3.1 miles) held on June 11–12, 2027. The courses are set on rugged, high‑elevation terrain just outside Yellowstone National Park and run largely through the Custer Gallatin National Forest and Hebgen Lake Ranger District. The official race route does not take place within park boundaries.

The half marathon mixes town streets with forest service roads and dirt trails, with steady climbs, technical rocky sections, and fast downhills. The course description notes several aid stations and a multi‑hour cutoff for the half. The 5K begins from the expo area, runs a mile through town, then continues onto forest service roads before returning to the finish line; it lists a single aid station.

Event logistics include an expo and bib pickup at the Old Airport Road lot in West Yellowstone, on‑site parking near the start and finish areas, and options to have race packets shipped for a fee. The event operates a cup free policy; runners are asked to bring a reusable bottle, cup, or hydration pack. Organizers also provide waste sorting containers for compostables, recyclables, and other trash. Combination challenge options let participants complete paired or all four races across the Grand Teton and Yellowstone weekends. Visit the organization's website for the most recent information.

13 mi
Half Marathon
Half Marathon
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5 km
5 km
Bison Double (5k + Half)
Grand Quad (4 Races)
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