Blue Sky Marathon & Half

Immerse yourself in the beauty of Fort Collins’ stunning landscapes at the Blue Sky Marathon, the city's premier trail marathon.Traverse the trails winding between Horsetooth Mountain Park and the Devil’s Backbone Open Space, offering a picturesque exploration of Northern Colorado's majestic Front Range. Featuring 3,500 feet of elevation gain and loss, the course caters to both experienced trail runners and first-time racers. With a generous nine-hour cutoff time, participants are guaranteed a rewarding experience.

Experience a variety of terrains, from smooth dirt trails to challenging technical rock gardens, all set against the backdrop of Colorado's signature redstone hardpack on the Blue Sky Trail. After the race, unwind with a popular barbeque and exciting sponsor giveaways to round out a memorable day of adventure.