Trail Running calendar near Lake City 2025-2026

The San Juan Solstice 50 Mile is a challenging ultramarathon held annually near Lake City, Colorado, typically around the summer solstice in June. Established in 1995, the race covers a 50-mile course through high mountain terrain, including snowfields and creek crossings along the Continental Divid..

The John Cappis is a challenging 50K mountaineering event held near Silverton, Colorado, featuring approximately 19,000 feet of elevation gain across rugged terrain. Participants summit several peaks around Silverton on an unmarked, mostly off-trail course with elevations ranging from 9,300 to 13,30..

The Hardrock 100 is a challenging 100-mile ultramarathon held annually in the San Juan Mountain Range of southwestern Colorado. The race features a counter-clockwise loop course that traverses rugged backcountry terrain, including 4WD roads, dirt trails, and cross-country sections. Runners experienc..

The Grin & Bear It is Crested Butte’s oldest trail challenge, held in Crested Butte, Colorado. The event features two main running races: a traditional 15 km out-and-back course and a 25 km loop course, both starting and finishing at the Crested Butte Nordic Center. The 25 km loop includes significa..

The High Lonesome 100 is a challenging 100-mile trail race set in the stunning Sawatch Range of the Colorado Rocky Mountains. Participants will experience a grueling course featuring 23,500 feet of vertical gain, reaching elevations of 13,100 feet. The race includes a loop that traverses beautiful s..

The Ouray 100 Mile Endurance Run is a challenging ultramarathon held in Ouray, Colorado, nestled in the scenic San Juan Mountains. Covering 100 miles with approximately 41,862 feet of elevation gain, the course features fourteen major climbs, including a final 5,000-foot ascent to the Bridge of Heav..

The Silverton Alpine Marathons, held in Silverton, Colorado, offer trail running events including a 50K, marathon, and 8-mile race through the scenic San Juan Mountains. The courses follow the historic Alpine Loop jeep roads, passing ghost mining towns like Howardsville, Eureka, Animas Forks, and Gl..

The Kendall Mountain Run is a challenging mountain race held annually in Silverton, Colorado. It features two distances: a 12-mile course and an 11-kilometer course. Starting at 9,318 feet in downtown Silverton, runners ascend jeep roads to a thrilling final scramble to the summit of Kendall Mountai..

The Creede 100 is a challenging 100-mile ultramarathon held in Creede, Colorado, a historic mining town. The race features a scenic and rugged course through the San Juan Mountains, climbing above 12,000 feet and traversing the Continental Divide for 25 miles. Runners experience breathtaking views,..

The Box Canyon Trail Races in Telluride, Colorado, offer two challenging and scenic mountain runs: a 30K and a 10-mile race. The 30K is a tough loop featuring about 5,800 feet of elevation gain, passing landmarks like Bridal Veil Falls and the Smuggler-Union Hydroelectric Plant, reaching a high poin..

The Grand Mesa Ultras, held on the Grand Mesa in Colorado, offers mountain trail races including a 50-mile, 55K, and 30K distance. Set on the world's largest flat-topped mountain with an average elevation over 10,000 feet, the event features challenging, technical trails with rocky climbs, fast fore..

The Kennebec Mountain Run is a challenging 15-mile trail race set in the picturesque La Plata Mountains of southwest Colorado. Participants will navigate a rugged course featuring a significant elevation gain of 3,100 feet, reaching a peak of 12,200 feet at Kennebec Pass. The event promises breathta..

The High Five 100 is an extreme ultra-endurance running challenge held in Lake City, Colorado. Covering approximately 90 to 105 miles with over 40,000 feet of elevation gain, the course requires runners to summit five 14,000-foot peaks and six 13,000-foot peaks within 48 hours. Unlike traditional ra..

The San Juan Softie 100 is a challenging 100-mile ultramarathon held in Durango, Colorado, traversing the scenic San Juan Mountains. The course features an average elevation near 10,000 feet and includes over 20,000 feet of vertical gain, making it a demanding mountain race. Participants experience..

The Rio Grande 100 is an ultramarathon held in South Fork, Colorado, starting and finishing along the Rio Grande River. The challenging 100-mile course traverses the stunning La Garita Mountains, featuring diverse terrain from arid forests to alpine tundra, with four ascents above 12,000 feet. Runne..

The Telluride Mountain Run, held in Telluride, Colorado, is a demanding mountain race set in the scenic San Juan Mountains. Offering three distances—40 miles, 24 miles, and 13 miles—this event challenges runners with technical terrain including old mining roads, singletrack trails, alpine tundra, ex..

The Grand Traverse Mountain Run is a challenging 40-mile point-to-point ultramarathon held in Colorado, running from Crested Butte to Aspen across the Elk Mountains. The course follows the route of the Grand Traverse Backcountry Ski race and features over 6,000 feet of elevation gain, offering a dem..

The Creede Mountain Run, held in Creede, Colorado, is a scenic and challenging mountain race established in 1987. It offers four race distances: 2 miles, 12 miles, 22 miles, and a 50K ultra marathon. Starting at 8,850 feet elevation in the historic mining town, the course ascends through Willow Cree..

The Ouray 50 Mile Endurance Run, held in Ouray, Colorado, is a challenging mountain ultramarathon featuring approximately 23,582 feet of elevation gain. Known for its technical and demanding trails, the course is set nearly two miles above sea level amidst stunning mountain scenery. This race is des..

The Blisters & Brews Telluride 5k will take place in Telluride on Saturday 13 September 2025. You can run between 5 and 5 kilometers.