Trail Running calendar near Crawford 2026-2027

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 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.

A rugged, mostly off-trail 50k around Silverton, CO, with about 19,000 ft of ascent and a roughly 19-hour cutoff. Entry is limited and restricted to club members with proven mountain navigation experience.

A three race trail series at Sunlight Mountain Resort near Glenwood Springs, Colorado. It offers 5K, 10K, and a half marathon with specified elevation gains, limited aid station support, and defined registration windows.

An uphill foot race in Telluride that benefits the Good Neighbor Fund, following the Telluride Trail to San Sophia ridge. The event uses age and gender categories, awards medals by category, and lists specific bib pickup dates before the ra..

A 100 mile loop ultramarathon in the San Juan Mountains of southern Colorado, featuring about 66,394 feet of total elevation change and an average elevation of 11,186 feet. The course uses 4WD roads, dirt trails and cross country terrain.

Experience Crested Butte’s oldest trail challenge with running and mountain biking events. Choose between a 25 km loop or the classic 15 km sprint in this high elevation mountain competition.

A 100 mile mountain ultramarathon in Ouray, Colorado, with about 41,862 feet of elevation gain and fourteen climbs. Participants must complete eight hours of pre race volunteer service or pay a $100 opt out fee; winners face drug testing.

Experience a high altitude mountain race through the Sawatch range of the Colorado Rockies. This 101 mile loop features historical ghost towns and alpine passes with over 23000 feet of elevation gain.

Trail races in Silverton, Colorado offering 50K, marathon and 8 mile courses along the Alpine Loop through historic mining towns, reaching California Pass at about 12,926 feet. Aid stations, chip timing and a cupless Kendall Mountain Run ar..

Trail running event in Mesa, Colorado on July 18, 2026 offering 5 km and 15 km courses. Organized by the Grand Junction Sports Commission; volunteers can register and full refunds or deferrals apply if canceled for severe weather.

Experience the mountain trails of Aspen Snowmass with three distinct race distances. Runners can choose between a 50K trek across four mountains a 25K trail run or a 10K course starting from the Elk Camp Gondola.

A mountain race in Silverton, Colorado that climbs from about 9,318 feet to near 13,060 feet with a final 300 foot scramble. Distances include a 12 mile summit route and an 11K out-and-back, with aid stations and a cupless policy.

A mountain trail event in Creede Colorado offering 50 mile and 100 mile options, with the 100 mile course climbing above 12,000 feet and crossing the Continental Divide for 25 miles. Entry for the 100 mile is limited to 100 spots.

Trail ultramarathons on Colorado's Grand Mesa with three distances, mountain single track, alpine scenery, camping options, awards, and post race food and beer.

High altitude mountain trail races in Telluride on July 25th 2026, featuring a 30K with about 5,800 ft of gain and a 10 mile with about 3,500 ft, mainly on technical alpine singletrack and double track.

A multi-distance trail running event in Aspen, Colorado, held on mostly dirt trails with substantial elevation gain. The race centers at Rio Grande Park and takes place alongside a park festival that includes live music and food.

A self navigated mountain challenge in Lake City, CO with 24 required proof points and checkpoints. Routes are unmarked, aid is allowed only at checkpoints, and finishers must return to Lake City within 48 hours.

A two day untimed trail event at New Belgium Ranger Station in Snowmass Village offering 3.76k, 5k and a 10k plus an 18.76k Centennial Challenge. Includes a free New Belgium craft brew, finisher medal and event festivities.