Trail Running calendar near Naturita 2025-2026

The Fruita Trail Half Marathon is a scenic 13.8-mile loop race held in Fruita, Colorado, as part of the Adventure Fest weekend. The course features flowy singletrack trails through the North Fruita Desert, with nearly 1,000 feet of climbing, short steep ascents and descents, and stunning views of ne..

The Sky Pilots Ouray Backyard Ultra is a unique endurance running event held in Ouray, Colorado, starting at Fellin Park. Participants run a 4.167-mile out-and-back course featuring a mix of asphalt track, smooth dirt roads, and the scenic Uncompahgre River Walk with minimal elevation gain (140 feet..

Bears Ears Ultra is a trail running event held in the scenic Abajo Mountains near Monticello, Utah. It offers three race distances: 50 miles, 50K, and 30K. Participants experience stunning panoramic views of iconic landmarks such as Canyonlands National Park, Bears Ears National Monument, Monument V..

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 mountain endurance event held in Silverton, Colorado, on June 28, 2025. It features a roughly 50-kilometer course with approximately 19,000 feet of elevation gain, traversing peaks in the San Juan Mountains. The course is mostly off-trail and unmarked, requiring GPS..

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 with a total elevation change of about 66,000 feet, including 33,000 feet of ascent and descent, averaging an elevation of..

The Ouray 100 Mile Endurance Run is a challenging ultramarathon set in the breathtaking San Juan Mountain range of Colorado. Participants will face approximately 41,862 feet of elevation gain, making it one of the toughest endurance events. The race features stunning views and demanding climbs, culm..

The Powderhorn Mountain Ultra and Vert Challenge, held at Powderhorn Mountain Resort in Mesa, Colorado, offers a thrilling mountain running experience. Participants can choose between a 12-hour or 6-hour ultra on a 10K loop course with 1,546 feet of elevation gain per lap, or a Vertical Challenge fo..

The Silverton Alpine Marathons, held in Silverton, Colorado, offer trail running adventures through the stunning San Juan Mountains. Participants can choose from three distances: an 8-mile out-and-back, a marathon (~26.8 miles), and a challenging 50K (~31.8 miles). The marathon and 50K courses trave..

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 Box Canyon Trail Races in Telluride, Colorado, feature two challenging mountain courses: a 30K and a 10-mile race. The 30K course offers a scenic loop through high alpine terrain with approximately 5,800 feet of vertical gain, passing iconic landmarks like Bridal Veil Falls and reaching elevatio..

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 a unique ultra-running challenge held in Lake City, CO, designed for elite runners seeking an extraordinary test of endurance. Participants must navigate a course that includes 24 designated proof points and checkpoints, with the goal of returning to Lake City within a 48-hour t..

The Ute 100 Mile & 50 Mile is a premier running event set in the stunning La Sal Mountains of Utah, featuring a challenging 100-mile course with an average elevation of over 8,700 feet and a total elevation gain of approximately 21,000 feet. For those seeking a shorter challenge, the 50-mile option..

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 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 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.

The Ouray Mountain Trail Run is a 13-mile mountain race held in Ouray, Colorado, starting and ending at Fellin Park. The event offers stunning views of the surrounding mountains and is designed to challenge participants while supporting local education initiatives. It is organized as a fundraiser fo..