Come challenge yourself on Castle Rock's vast ridgeline trail system. Trail run options range from the liveBIG Family Adventure Run to the Ultra Marathon 50K. If you’ve run this trail system before, you know these are some beautiful and beguiling trails at both Philip S. Miller Park and Ridgeline Open Space.
6 a.m. - Packet pickup and walk up registration
7:30 a.m. - 50K race start
8:30 a.m. - Half Marathon race start
9 a.m. - 10K race start
9:30 a.m. - 5K race start
10:30 a.m. - liveBIG Family Adventure Run start
3:30 p.m. - Finish line closes
liveBIG Family Adventure Run: $20
Philip S. Miller Park 5K: $35
Ridgeline 10K: $45
Ridgeline Trail Half Marathon: $65
Ridgeline 50K: $95
Registration closes Tuesday, Oct. 3. Race day registration is available with a $15 race day fee.
Click Here for Registration