Littleton
Trail Running Calendar near Littleton 2026-2027
Explore the top trail runs near Littleton for 2026-2027! We've gathered 35 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
August 2026
Trail runs and family activities at Arapahoe County Fairgrounds with a dog friendly 5K, kids mile, pancakes, and fundraising for Back the Blue K-9 Force.
Free timed 5K in Lafayette at Waneka Lake with nearby parking; strollers allowed, dogs restricted, and concessions and T shirt sales support the Centaurus Cross Country Team.
September 2026
Join the community for a 5K run or walk on a brand new dirt course at the North Arvada Middle School Athletic Complex. Support local high school racers before taking on this off road route yourself.
A load bearing endurance event at Staunton State Park on September 5, 2026. Routes range from 6.5 to 21.5 miles with loads from 10 to 40 lb and proceeds benefit the Special Forces Foundation.
A free supported training run in Castle Rock with 16-mile and 10-mile route options, community support, sponsors, and on-site vendors.
Community 5K, 1 mile fun run and a dog friendly 3.1 mile course on Second Creek Trail supporting Every Child Pediatrics in Commerce City on 09/19/2026.
The 4th annual Greenland Open Space Pack Burro Race in Larkspur, Colorado offers 8 Mile and 3 Mile pack burro divisions. Teams must register a burro partner, follow animal welfare rules, and the field is limited to 75 participants.
October 2026
A multi-distance trail weekend at Bear Creek Lake Park offering 100K to 5K courses on mostly singletrack with aid stations, drop bags, pacer rules and live split tracking.
Castle Rock trail festival with a family adventure run and races from 5K to 50K on Philip S. Miller Park and Ridgeline Open Space.
An Oktoberfest themed run in Louisville Community Park with 5k, 10k, half marathon and a kids mile, featuring a traditional German beer mug, a large pretzel, a finisher medallion and an afternoon beer garden with live music.
OUTLAST Denver is a six hour trail challenge where runners complete a 5K every hour, earn patches or a medal for laps, and can place on a national leaderboard.
Run the Rocks at Red Rocks Park in Morrison, CO offers a 5k and a 1.3-mile family course, raising funds for lung disease education, advocacy and research in Colorado.