2 running events in Castle Pines, Colorado

The Wildcat Mountain Trail Races showcase some of the most scenic terrain in the HRCA Backcountry Wilderness Area, giving runners a true taste of the rolling hills, open views, and natural beauty surrounding Wildcat Mountain. Each fall, participants take on two distances—a 10-mile and a 10K—designed to highlight the area’s unique, beautiful trails.

The race begins at the Douglas County East/West Trailhead at Rocky Heights Middle School and follows the E/W Trail into the Backcountry, linking directly into the Wildcat Mountain trails.

Adult registration includes:

• Dry-fit race t-shirt

• Custom race bib

• Custom finisher medal

• Pancake breakfast from Flippin' Flapjacks

• Post-race beers compliments of Living the Dream Brewing

Kids’ Races

Race day will end with a series of untimed, just-for-fun kids’ races, giving young runners an easy and exciting way to be part of race day. Our goal is to create a safe, welcoming introduction to trail running, and these short races offer the perfect opportunity for kids ages 0–12 to get involved. Registration is only $10, and every participant receives a finisher medal.

Distances vary by age to ensure a fun and manageable experience for all: Ages 2–4 run approximately 0.25 miles, Ages 5–7 run about 0.62 miles, Ages 8–10 take on roughly 1 mile, and Ages 11–12 complete a 2-mile course.

Kids' registration includes:

• Custom race bib

• Custom finisher medal

The 18th Annual Backcountry Wilderness Half Marathon returns to Highlands Ranch on Saturday, November 7, 2026, at 9:00 a.m. This 13.1-mile race winds through the Douglas County East/West Trail and the scenic Highlands Ranch Backcountry Wilderness Area—offering singletrack, hills, and breathtaking views at every turn.

Cash prizes will be awarded to the top three male, female, and non-binary finishers:

1st – $600 | 2nd – $400 | 3rd – $200

Whether you're chasing a personal best or taking on the trails for the first time, this race delivers a rewarding test of endurance and Colorado beauty.

All participants will receive the following:

• Long sleeve technical race shirt

• Custom race bib

• Custom finisher medal

• Pancake breakfast from Flippin' Flapjacks

• Post-race beers compliments of Living the Dream Brewing