home |

Blue Sky Trail Half Marathon

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. It is designed to appeal to both veteran trail runners and those looking to experience their first trail racing adventure.

Race Date: Sunday, 19 October 2025

Location: Colorado, United States
Nearby City: Fort Collins

Event 1:
Race Length: 13.3 miles (21.4 km)
Elevation Gain: 1,700 feet (+128 ft/mi)
Elevation Loss: 1,700 feet (-128 ft/mi)
High Point: 6,800 feet
Low Point: 5,400 feet
95% dirt trails, 5% dirt roads, 0% paved
Additional Information

Website URL: https://gnarrunners.com/blue-sky-marathon/ (opens new window)
Race Director: gnarrunners

 


 

Race Reports For Blue Sky Trail Half Marathon

Race Reports

Contribute
To add your own race report, . To add a new trail race, .

Feedback
See an error? Does this race need an update? Please contact us using the feedback form .

 
Submitted On: 1/24/2025
By: gnarrunners (Race Director)

 

 

All Colorado Trail Races