Trail Running calendar near Telluride 2026-2027

San Juan Solstice 50 Mile Run on June 20, 2026 uses MAProgress live tracking; entry was by lottery with 300 registered and 285 on the waitlist. All runners must carry a registered tracker which can be owned, borrowed, or rented.

A remote, unmarked mountain 50K near Silverton, CO with about 19,000 ft of gain; membership and strong off-trail mountain experience are required and support on course is minimal.

Trail Town Ten in Ridgway features a 10 mile lollipop course with San Juan Mountain views and a 5 mile out-and-back on the same dirt roads. The event is coordinated with Ridgway RiverFest and benefits the Uncompahgre Watershed Partnership.

A three-race trail series in Durango, Colorado during July 2026 pairing evening 5K to 10K trail races with local breweries. Each event features professional timing, post-race awards and partnerships with local nonprofits.

An uphill community foot race in Telluride on July 4 following the Telluride Trail to San Sophia ridge, with age-group awards and proceeds supporting the Good Neighbor Fund.

A 100-mile loop in the San Juan Mountains near Silverton Colorado featuring about 66,500 feet of total elevation change and alpine terrain. The event publishes runner and volunteer manuals and supports local organizations.

A historic Crested Butte trail event offering 15 km and 25 km runs plus a technical 25 km mountain bike course. Routes include long climbs, rocky singletrack and a Green Lake checkpoint with limited aid.

A 100 mile mountain endurance race in Ouray, Colorado with about 41,862 feet of elevation gain and fourteen climbs. Entrants must complete eight hours of volunteer service or pay a $100 opt out; top finishers face postrace drug testing and..

Trail races around Silverton, Colorado on the Alpine Loop with 50K, marathon and 8-mile courses passing historic mining towns and reaching California Pass at about 12,930 feet; aid stations, chip timing, no pacers, and limited crew access.

Kendall Mountain Run in Silverton on July 19, 2026 features a 12 mile summit route climbing from 9,318 ft to 13,066 ft and an 11 km out and back to Deer Park, with cupless aid stations and a six hour time limit.

Creede 50 and 100 take place in Creede on July 25 and 26, 2026, offering 50 mile and 100 mile courses organized by Tempest Adventures. The event site provides runner information, course details, crew and pacer guidance, and support resource..

Grand Mesa Ultras on July 25, 2026 in Grand Mesa, Colorado features high-elevation trail races in three distances with single track mountain terrain, camping options, and post-race awards and amenities.

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 15 mile mountain trail run on August 1, 2026 that climbs about 3,100 feet and reaches over 12,000 feet at Kennebec Pass. The course offers alpine terrain and views of the Animas and Dolores River valleys while supporting La Plata County S..

High Five 100 is a self guided 100 mile challenge from Lake City, Colorado that visits 24 proof points and checkpoints in order. Runners navigate their own route, face significant elevation gain, and must return within a 48 hour cutoff.

A high-mountain 100 mile ultramarathon north of Durango, Colorado, with about 19,000 ft of climbing and a 38 hour cutoff. The 2026 race is sold out; satellite tracking and specific mandatory gear are required.

A new 200 mile loop ultramarathon in the La Garita mountains near South Fork, Colorado, featuring riverbank start, high alpine sections to just under 13,000 feet, pine forest and tundra terrain before returning to South Fork.

A technical mountain race above Telluride, Colorado, with five route options across mining roads, singletrack and alpine tundra. Courses climb to elevations above 13,000 ft and focus on the high-elevation trail experience.

A 50 mile mountain ultramarathon in Ouray, Colorado with 23,582 feet of elevation gain, technical high‑altitude terrain, mandatory volunteer service or opt-out donation, live SPOT tracking, and drug-tested cash awards.

A 40 mile point to point mountain ultramarathon from Crested Butte to Aspen across the Elk Mountains with over 6,000 feet of climb, organized as a fundraiser for Crested Butte Nordic and requiring specific backcountry gear.