Trail Running calendar near Ridgway 2026-2027

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 in July 2026 that pairs evening trail races with local breweries and nonprofit beneficiaries. Each event offers trail distances from 5K to 10K, post-race awards and brewery afterparties.

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 trail event at the Crested Butte Nordic Center featuring a 15 km out and back run, a 25 km loop run, and a technical 25 km mountain bike race with alpine climbs and a Green Lake checkpoint.

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..

Mountain trail races in Silverton, Colorado on the historic Alpine Loop. Distances include a 50K, a marathon and an 8 mile out and back that pass ghost mining towns and reach California Pass near 12,926 feet.

A mountain trail event at Powderhorn Mountain Resort on July 18, 2026, with a *5K* climb gaining over 1,500 ft and a *15K* that repeats the ascent. Registration includes resort entry, a t-shirt, finisher item, post-race food, and a lift pas..

A mountain road race in Silverton, Colorado on July 19, 2026 featuring a 12-mile summit route and an 11K out-and-back. The event includes jeep road climbs, a final scramble, aid stations, a cupless policy, 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-elevation 100 mile mountain ultramarathon near Durango, Colorado on August 14, 2026, covering roughly 104 miles with about 19,000 feet of climbing, staffed aid stations, required safety gear, satellite tracking, and a 38 hour cutoff.

A 200 mile loop race through the La Garita mountains around South Fork, CO, reaching elevations just under 13,000 feet. Organized by Tempest Adventures, registration closes Aug 1 and the listed entry fee is 1268 USD.

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 ultramarathon from Crested Butte to Aspen across the Elk Mountains with over 6,000 feet of climbing, five aid stations, mandatory backcountry gear and mandatory tracking; proceeds support Crested Butte Nordic.