Madison Marathon - Ennis
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Madison Marathon - Ennis, Montana
The Madison Marathon takes place on July 11, 2026, on US Forest Service Rd 100 near Ennis, Montana, on the Gravelly Range. The event uses gravel roads and is described as running under the Big Sky of Montana through a largely pristine ecosystem.
Distances offered:
- 26.22 Miles full marathon
- 13.11 Miles half marathon
The field is limited to 150 runners as required by US Forest Service policy; this cap was reduced from 200 in 2022. The event regularly attracts runners from about 40 states and several countries, with nearly half of participants coming from outside Montana. The race also commonly draws members of Marathon Maniacs and 50-Stater communities, along with many first-time marathoners and repeat entrants.
Course characteristics include a high starting elevation of 9,250 feet and long uphill and downhill sections that generally remain above 8,500 feet. The route is noted for wildlife sightings and natural scenery; past reports include sightings of a bear and a wolf. The organizer emphasizes the limited field size and the alpine environment as defining features of the race experience. Visit the organization's website for the most recent information.