Blue Sky Trail Marathon & Half Marathon

🌟 Welcome to the Blue Sky Trail Marathon & Half

Welcome to the Blue Sky Trail Marathon &: Half, Fort Collins's original and only trail marathon.

🏞️ Course Overview

• Location: Taking place on the trails between Horsetooth Mountain Park and the Devil's Backbone Open Space.
• Route: The course takes you on a north-south tour of the easternmost hogbacks of Northern Colorado's mighty Front Range.
• Elevation Gain: The marathon boasts 3,500 feet of elevation gain/loss.
• Half Marathon: The half marathon checks in at 1,800 feet.

🏃‍♂️ Trail Experience

• Appeal: Designed to appeal to both veteran trail runners and those looking to experience their first trail racing adventure.
• Time Limit: The generous nine hour cut-off should ensure a successful day for everyone.
• Terrain: The course is 100% dirt and 90% sweet Colorado singletrack.
• Difficulty: Ranges from smooth dirt trail to technical rock gardens.

🍖 Post-Race Celebration

• Food: After the race, kick back and enjoy the always-popular barbecue.
• Giveaways: Generous sponsor giveaways await participants.
• Community: An opportunity to relax and connect with fellow runners.
• Fun: Celebrate your achievement in a festive environment.

📍 Event Details

Date: 2025-10-18

Location: 4780 W County Rd 38e, Fort Collins, CO

Website: Blue Sky Trail Marathon & Half Marathon