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October 3, 2020
6:30 AM - 3:30 PM
Philip S. Miller Park - Trails and Challenge Hill
1375 W. Plum Creek Parkway
Castle Rock, CO 80109
$15–$95, depending on race and time of registration.
Town of Castle Rock TrailFest logo
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Castle Rock Trail Festival/LiveBIG Family Adventure Run

Saturday, October 3, 2020

Welcome to the Town of Castle Rock’s 2020 epic trail event. The Trails Festival is back for its fifth year! Come to challenge yourself on the vast Ridgeline trail system and enjoy Castle Rock’s local trails.

Trail run options range from the liveBIG 5K to the Ultra Marathon 50K. Races will begin at 7:30 a.m. near the Amphitheater at Philip S. Miller Park and wind through the single and double-track trails at Philip S. Miller Park and Ridgeline Open Space. You will take in the impressive views of the surrounding buttes and the scenic views of Castle Rock as the trail twists and winds over the flowing race course.

Race day event timeline:
6:30 a.m. Packet pickup and registration begins at race site
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. Family Adventure Run start
4 p.m. Finish line closes

Natives to Colorado are familiar with the day to day weather here. While the average low temperature in early October is 35 degrees and the average high is 65 degrees, please be prepared for anything. We hope to have the perfect weather on race day, but there’s always a possibility of rain or snow on the trail making for muddy conditions.

Course options and fees:
liveBIG Family Adventure Run
$20 - July 1 through Sept. 15 
$25 - after Sept. 15
$30 - on race day

liveBIG 5K
$25 - July 1 through Sept. 15
$30 - after Sept. 15
$35 - on race day

Ridgeline 10K
$35 - July 1 through Sept. 15
$40 - after Sept. 15
$45 - on race day

Ridgeline Trail Half Marathon 
$55 - July 1 through Sept. 15
$60 - after Sept. 15
$65 - on race day

Ridgeline 50K 
$85 - July 1 through Sept. 15
$90 - after Sept. 15
$95 - on race day 

Castle Rock Trail Festival