Course
Starts at the Blue Sky Trailhead west of Fort Collins (half at South Bay Pavilion), running between Horsetooth Mountain Park and Devil's Backbone on 100% dirt and roughly 90% singletrack, from smooth trail to technical rock gardens. The marathon (Saturday) has 8 aid stations and intermediate cutoffs; the half (Sunday) has 5.
Key dates
- ★Race dayOctober 2027 · date to be announced
About
Taking place on the trails between Horsetooth Mountain Park and the Devil's Backbone Open Space, the Blue Sky courses take you on a north-south tour of the easternmost hogbacks of Northern Colorado's Front Range mountains. With a moderate amount of elevation gain and loss and a variety of terrain, the route offers a little bit of something for everyone.
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The Great Trailhead Foot Race 5 & 10 Miler
Singletrack in the shadow of Denver's skyline
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Indian Creek Trail Runs
Front Range single-track through pine forests and red rock terrain
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Bobcat Trail Races
City park trails with rocky bluff views of Pikes Peak
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4TH ANNUAL HALLOWEEN HUSTLE FOR CHARITY
In a mountain valley where two rivers meet
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