Trail Running calendar near Crawford 2025-2026

The High Lonesome 100 is a challenging 100-mile trail ultramarathon held in the Sawatch Range of the Colorado Rocky Mountains, starting and finishing near Mount Princeton. The loop course features 23,500 feet of elevation gain, reaching a high point of 13,100 feet and averaging 10,600 feet in elevat..

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 an elevation gain of approximately 41,862 feet, the course features fourteen significant climbs, including a final 5,000-foot ascent to the Bridg..

The Audi Power of Four Trail Run is a scenic trail running event held in Aspen, Colorado, featuring routes across the mountains of Aspen Snowmass. Scheduled for July 19, 2025, the race offers three distance options: 50K, 25K, and 10K, catering to a range of trail runners. Participants experience div..

The Powderhorn Mountain Ultra and Vert Challenge, held at Powderhorn Mountain Resort in Mesa, Colorado, is a demanding mountain running event featuring two main race options: a 12-hour or 6-hour ultra on a 10K loop with approximately 1,546 feet of elevation gain per lap, and a Vertical Challenge foc..

The Silverton Alpine Marathons, held in Silverton, Colorado, offer runners a challenging and scenic trail experience in the San Juan Mountains. Participants can choose from three distances: an 8-mile out-and-back, a marathon (~26.7 miles), and a 50K (~31.8 miles). The marathon and 50K courses follow..

The Kendall Mountain Run is a challenging mountain race held annually in Silverton, Colorado. It features two distances: a 12-mile course and an 11K, both starting in downtown Silverton at 9,318 feet elevation. The 12-mile race ascends jeep roads to a thrilling final scramble to the summit of Kendal..

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, the Smuggler-Union Hydroelectric Plant, and reaching a high poi..

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 above 10,000 feet, the course features technical rocky climbs, fast forest single track, alpine..

The Mountain Fair 4-Miler is a scenic running event held in Carbondale, Colorado, starting near Prince Creek Road and finishing at Sopris Park during the Mountain Fair. The 4-mile course is mostly a gentle downhill, beginning about three miles up Prince Creek Road and descending to Highway 133, then..

The Aspen Backcountry Marathon, held in Aspen, Colorado, offers three trail running distances: a 50K ultra, a marathon, and a heavy half-marathon. The courses run almost entirely on dirt trails featuring diverse terrain with challenging ascents, descents, and significant elevation gain, reaching ove..

The High Five 100 is an extreme ultra-endurance running challenge held in Lake City, Colorado. Covering an estimated 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 in the rugged San Juan Mountains. Parti..

Pyro's Push It Up Trail Run is a scenic trail running event held in New Castle, Colorado, featuring distances of 3.5K, 7.7K, and a challenging 13K course. The race takes participants through beautiful mountain trails, crossing streams and winding through Aspen groves in the Flat Tops area. It offers..

The Telluride Mountain Run, held in Telluride, Colorado, is a demanding mountain race set in the San Juan Mountains. It offers three challenging distances: 40 miles, 24 miles, and 13 miles. The course features old mining roads, singletrack trails, alpine tundra, exposed ridgelines, and high summits,..

The Creede Mountain Run, held in Creede, Colorado, is a challenging mountain race established in 1987 that celebrates the transition from summer to fall. Set in the scenic San Juan Mountains, it offers four race distances: 2 miles, 12 miles, 22 miles, and a 50K ultra. The courses start in the histor..

The Sneffels Round is a challenging mountaineering event held near Ouray, Colorado, with a 100-hour time limit. Participants choose their own routes to summit a selection of peaks from a map featuring 39 mountains, including many 13ers and the 14,150-foot Mt. Sneffels.The course covers roughly 75 mi..

The Grand Traverse Mountain Run is a challenging 40-mile point-to-point ultramarathon from Crested Butte to Aspen, Colorado, traversing the Elk Mountains with over 6,000 feet of elevation gain. Held annually, the race follows the route of the Grand Traverse Backcountry Ski race, offering runners a r..

The Imogene Pass Run will take place in Telluride on Saturday 6 September 2025.

The Ouray 50 Mile Endurance Run, held in Ouray, Colorado, is a challenging mountain ultramarathon featuring 50 miles of highly technical trails with an elevation gain of 23,582 feet. Set nearly two miles above sea level, the course offers stunning mountain scenery and is known for being tougher than..

Blisters & Brews is a 5k fundraiser race held in Telluride, designed for attendees of the Telluride Blues & Brews Festival to enjoy a morning of exercise before the festivities begin. The event supports the Telluride Adaptive Sports Program and features a scenic route that includes views of Bridal V..