Castle Rock Trail Festival / liveBIG Run 2026

Philip S. Miller Park and the Ridgeline Open Space in Castle Rock serve as the setting for this trail festival, challenging runners on Castle Rock's extensive ridgeline trail system. This event is an athletic gathering, combining serious trail pursuits with a strong community and family spirit. Runners will navigate the varied terrain of the ridgeline trail system, experiencing the natural contours of Philip S. Miller Park and Ridgeline Open Space. Beyond the main races, the liveBIG Family Adventure Run offers a dedicated family obstacle course for children ages 5 to 12, ensuring an engaging experience for younger participants and an inclusive atmosphere.