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Castle Rock Trail Festival

Castle Rock, United States • 4 Oct 2025

Castle Rock Trail Festival / liveBIG Run invites runners of all levels to explore Castle Rock’s ridgeline trails, including Philip S. Miller Park and Ridgeline Open Space, on Saturday, Oct. 4.

Distances include a liveBIG Family Adventure Run (a family-friendly obstacle course), 5K, 10K, Ridgeline Trail Half Marathon, and Ridgeline 50K ultramarathon. The event fosters a welcoming, outdoorsy atmosphere for ultrarunners and families with children ages 5–12. All participants receive a T‑shirt and finisher’s medal, with professional chip timing and free post‑race photos.

Aid stations, water, first aid, and post‑race refreshments add to the experience, and proceeds support the Town’s Therapeutic Recreation Program. Elevation peaks near 6,700 feet. Visit the organization's website for the most recent information.

United States Colorado Castle Rock

Race information

Website
50 km
Ridgeline 50k
21 km
Ridgeline Trail Half Marathon
10 km
Ridgeline 10k
5 km
Philip S. Miller 5k
Livebig Family Adventure Run
Visit the organization's website for the most recent information.
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