Castle Rock Trail Festival and liveBIG Family Adventure Run

The Town of Castle Rock's Trail Festival is back for its seventh year, sponsored by AdventHealth Castle Rock. Runners take on the ridgeline trail system at Miller Park and Ridgeline Open Space in a 50K, half marathon, 10K and 5K, and families with kids ages 5 to 12 run the obstacle course at the liveBIG Family Adventure Run.

Registration: online registration closed Monday, Sept. 28. You can still sign up at the event on race day, but fees are $15 higher for every race except the Family Adventure Run. Online prices (fees included) were: liveBIG Family Adventure Run $33.42, Miller Park 5K $49.90, Ridgeline 10K $61.23, Ridgeline Trail Half Marathon $81.83, Ridgeline 50K $113.76.

Race day, Sat. Oct. 3: 6 a.m. packet pickup and walk-up registration, 7:30 a.m. 50K, 8:30 a.m. half marathon, 9 a.m. 10K, 9:30 a.m. 5K, 10:30 a.m. liveBIG Family Adventure Run, 3:30 p.m. finish line closes. Early packet pickup is Friday, Oct. 2 at RNK Running & Walking in Castle Rock during store hours.

Every participant gets an event T-shirt and finisher's medal, chip timing, free photo downloads and post-race refreshments. The 50K has an 8-hour time limit. All liveBIG proceeds go to the Town's Therapeutic Recreation Program.