Trail Running calendar near Lake City 2025-2026

The Sky Pilots Ouray Backyard Ultra is a unique running event taking place in Ouray, Colorado. Participants tackle a 4.167-mile course, with the challenge of completing each lap within an hour to continue racing. The event continues until only one runner remains, who must complete one additional lap..

The Vallecito Lake Heavy Half is a scenic half marathon set around the picturesque Vallecito Reservoir in Colorado's San Juan Mountains. Scheduled for May 17, 2025, this unique race offers participants the chance to run on a course that includes sections typically closed to the public, such as a por..

The San Juan Solstice 50 Mile Run is an annual ultra-marathon held in Lake City, Colorado, typically around the Summer Solstice. Established in 1995, the event has evolved into a community benefit for local EMTs. The race features a challenging course that includes high mountain terrain and varying..

The John Cappis is a challenging mountaineering event held in Silverton, Colorado, honoring John Cappis, a co-founder of the Hardrock 100. Participants tackle an unmarked, off-trail course that spans approximately 50 kilometers with a staggering elevation gain of 19,000 feet, navigating rugged terra..

The Hardrock 100 is a challenging 100-mile ultramarathon held in the San Juan Mountain Range of Southern Colorado. Participants face a total elevation change of 66,394 feet, with an average elevation of over 11,000 feet. The course features a mix of 4WD roads, dirt trails, and cross-country sections..

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 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 Silverton Alpine Marathons, taking place in Silverton, Colorado, offers an exhilarating trail running experience through the stunning San Juan Mountains. Participants can choose from three distances: a 50K, a marathon (approximately 26.7 miles), and an 8-mile run. The courses traverse historic m..

The Kendall Mountain Run, taking place in Silverton, Colorado, features a challenging 12-mile and an 11K race that culminates in a thrilling ascent to the summit of Kendall Mountain at 13,066 feet. Participants will experience breathtaking views of the San Juan Mountains as they climb from 9,318 fee..

The Creede 100 is an exhilarating 100-mile ultramarathon set in the historic mining town of Creede, Colorado. With only 100 spots available, this challenging race offers participants breathtaking views of the San Juan Mountains, including climbs above 12,000 feet and scenic trails along the Continen..

The Box Canyon Trail Races, set in the stunning high country of Telluride, Colorado, features two challenging courses: a 30K and a 10-mile race. The 30K route offers a scenic loop with significant elevation gain, taking runners past iconic landmarks and through alpine meadows, culminating at the Tel..

Grand Mesa Ultras is an exciting mountain running event held in Grand Mesa, Colorado, featuring races of 50 miles, 55K, and 30K. Set on the world's largest flat-topped mountain, participants can expect challenging trails with rocky climbs, flowing single tracks, and stunning alpine scenery. The even..

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 San Juan Softie 100 is an ultra running event set in the stunning San Juan mountains of southwest Colorado. This challenging 100-mile race features an average elevation of nearly 10,000 feet and includes over 20,000 feet of vertical gain, making it a true test of endurance for participants. The..

The Rio Grande 100 is an exhilarating ultramarathon set in South Fork, Colorado, featuring a challenging course that traverses the stunning La Garita mountains. Runners will experience diverse terrains, from arid forests to alpine tundra, with elevations exceeding 12,000 feet. The event is known for..

The Telluride Mountain Run is an exhilarating and challenging race set in the stunning San Juan Mountains of Colorado, above the historic town of Telluride. Participants can choose from three demanding routes: 40 miles, 24 miles, and 13 miles, all featuring technical terrain that includes old mining..

The Creede Mountain Run, established in 1987, is a celebrated annual event held in Creede, Colorado, offering a range of race distances including 2, 12, 22 miles, and a challenging 50K. Set against the stunning backdrop of the San Juan Mountains, participants experience a scenic course that begins i..

The Grand Traverse Mountain Run is a challenging 40-mile ultra marathon that takes place from Crested Butte to Aspen, Colorado. Following the route of the Grand Traverse Backcountry Ski race, participants face over 6,000 feet of elevation gain while navigating the stunning Elk Mountains. This event..

The Ouray 50 Mile Endurance Run is a challenging ultramarathon set in the stunning mountain scenery of Ouray, Colorado. With an elevation gain of 23,582 feet, this race is designed to be more difficult than many 100-mile events, featuring highly technical trails and an average elevation of nearly tw..