Trail Running calendar near Mount Princeton 2026-2027

Trail running at Farish Recreation Area on May 23, 2026, with a half marathon, 10K, 5K and a free 1 mile kids run. Top three men and women place in each adult race and the first 200 finishers receive a race hat.

Celebrate Memorial Day weekend with the Spirit Trail Race in Buena Vista, Colorado, a scenic trail event with marathon, half marathon and 9k options. Start in town square, enjoy Paddlefest fun, and support local nonprofits.

The Colorado Springs Spartan Trifecta Weekend will take place in Fort Carson from Saturday 30 May 2026 to Sunday 31 May 2026. You can run between 5 and 50 kilometers.

A mountain ultramarathon near Denver offering 50 Mile and 50K options on mostly singletrack trails, passing 1996 burn areas, ponderosa pines, and granite formations. Part of the proceeds support the North Fork Volunteer Fire Department.

A 20K clockwise loop around Turquoise Lake that mixes hilly paved road and single track trail, held May 30, 2026, with $40 adult registration and free entry for youth 17 and under. Proceeds support local youth athletics and recreation.

A 10k trail race in Elk Meadow Park near Buchanan Park Recreation Center in Evergreen, CO, featuring a rolling-hills course, vendor tents and refreshments. The event is cup-free with water refills at the start and finish.

A scenic *5 km* cross country race at the Leadville National Fish Hatchery on May 31, 2026, with dirt road, path and trail sections. Awards are given by age group and youth registration is free.

Six trail races across Summit County, Colorado, in summer 2026. Series registration includes long and short course options with adult, youth, and non binary categories and events at multiple Summit County trail heads.

A mountain trail event in Snowmass Village on June 5-6, 2026 offering a 6.6 mile Red Loop and timed 6 hour and 24 hour ultras, with campground hub, on-site amenities, and 2026 as the final year at Snowmass.

A two-day team relay in Snowmass Village on June 5 to 6, 2026, featuring teams of four or eight covering 120 miles and 17,888 feet of gain, with camping, village amenities and alpine trail scenery.

A looped trail ultrafestival in Mueller State Park on June 6 to 7 2026 offering 100 mile, 100k, 50k and 25k races on smooth single and double track. Aid stations are crew accessible and a night run takes place at sunset.

A mountain trail 10 km on Vail Mountain at nearly 9,000 feet with varied terrain, two on course aid stations and a cupless policy with a provided collapsible cup. Multiple age categories and a total prize purse of $12,200.

Races through Garden of the Gods Park include a 10 mile road, 10K road and 10K trail, all finishing at Rock Ledge Ranch. The routes pass towering sandstone formations, include aid stations, and end with on-site post-race food and music.

A three day Leadville training camp that walks and runs major sections of the Leadville Trail 100 course, pairs guided day and night runs with recovery and nutrition support, and includes panels, Q&A sessions and a provided running kit.

A 50 mile high mountain trail run in Lake City, Colorado, held near the summer solstice. Live tracking is required and entrants must be 18 or older with prior trail ultra experience.

Trail races in Colorado Springs with 100K, 50K and 35K courses that start and finish at Rock Ledge Ranch in Garden of the Gods, featuring significant elevation gain, aid stations, and on course support.

A trail run at Creekside Park on June 20, 2026 offering 10K and 5.2K courses as part of the Vail Trail Running Series; the race benefits the Vail Valley Charitable Fund and features aid stations, finish-line food, awards, and on-site maps.

A summer and early fall series of four half marathons and a 25K across Colorado in 2026, with options to enter three, four, or all five events; races include Estes Park, Georgetown to Idaho Springs, Mt Sneffels, Ned Ned, and Lead King Loop.

At 10,600 feet in Alma, Colorado, Race in the Clouds is a June 25 to 28 Dirt Fest featuring mountain biking, trail running, off road duathlon, youth races and meadow camping, with USA Triathlon sanctioning and age group awards.

Trail marathon and Heavy Half on historic mining roads and single track, topping out at Mosquito Pass 13,185 feet. Distances are 26.4 miles and 15.46 miles with aid stations, chip timing, and limited crew access.