Trail Running calendar near Nathrop 2026-2027

Run the Cirque Series at Arapahoe Basin: a scenic 9.4 miles with 2,211 ft of climbing on high alpine trails around Montezuma and Little Lenawee. Finish in Mountain Goat Plaza with live music, food, and festival vibes.

The Devil on the Divide will take place in Empire on Saturday 12 September 2026. You can run between 22 and 50 kilometers.

Take on the legendary Pikes Peak Ascent and Marathon in Manitou Springs, Colorado, racing Barr Trail to the 14,115 foot summit. Choose the 13.3 mile Ascent to the top or the full 26.2 mile marathon up and back for a stunning high altitude c..

Run the Rainbow Trail in the Sangre de Cristo Mountains near Westcliffe, Colorado with distances from 8 mile to 100 mile for a scenic weekend of trail running. Limited to 350 runners and 100 mile finishers earn a belt buckle.

Tackle high alpine single track and ridgeline trails at the Crested Butte Ultra in Colorado, with 50 mile, 55K, and 35K options for every level. Expect stunning mountain views, challenging climbs, and a finisher buckle and swag.

Run rugged high alpine trails around Buena Vista, Colorado at the West Line Winder on September 26, 2026, with 30K and 50K options across scenic singletrack and forest roads. Pair with the Sawatch Ascent 50k to take on the Sawatch 50/50 cha..

Take on the 24 Hours of Palmer Lake, a community driven 24 hour endurance run on a scenic 0.82 mile loop atop the Palmer Divide. Run among mountain views, chase a 100 mile buckle and test your limits.

Sawatch Ascent is a mountain 50k in Nathrop, Colorado, around Mount Princeton spanning 33 miles and about 7,000 feet of climbing. Expect long singletrack, big alpine views, and finishers perks like a shirt, medal, and pro photos.

Take on the Sage Burner Trail at Hartman Rocks, Gunnison, Colorado on Oct 3, 2026 with 50K, 28K and 15K routes over slickrock and singletrack. Soak up high desert views, earn a finisher medal and support Gunnison Trails.

The Above The Clouds Ultra will take place in Woodland Park on Saturday 3 October 2026. You can run between 10 and 50 kilometers.

Run the Rubey Rescue Run, a challenging 5K uphill trail in Aspen that climbs to the Cliff House with sweeping Maroon Bells views. Timed and dog friendly, the October race raises funds for the Aspen Animal Shelter.

Run the Indian Creek Trail Runs in Sedalia, Colorado through lodgepole pine, aspen groves and red rock vistas. Multiple distances from 5 to 50 miles showcase Front Range scenery in a small field managed by Human Potential Running Series.

Take on technical single track trails, rolling hills and rocky bluffs at Palmer Park with 50K, 25K, 10K and 5K options. Enjoy city and Pikes Peak views while testing your trail skills at this Aravaipa Running event.

Tackle scenic single track trails at Bear Creek Lake Park in Lakewood CO with 5 km, 15 km, a 5 plus 15 double and a kids 1 km. Enjoy race swag and a pancake breakfast amid varied terrain and rolling hills.

Join the Colorado Cold Rush Ultra in Colorado Springs on November 21 for scenic mountain trail races around Bear Creek Regional Park, with 50k, half marathon and 10k options. All finishers get a BOCO beanie, race shirt and award.

Winter trail running at Staunton State Park near Pine, Colorado offers 50k, 16 mile and 8 mile routes across high meadows and granite cliffs. Limited to 250 runners, expect wintry mountain conditions and a unique finisher award.