Trail Running calendar near Grand Mesa 2025-2026

The Cannibalism SnowShoe Scramble is an exciting winter event taking place at Lake San Cristobal in Lake City, Colorado. This annual race features a 5K challenge course for adventurous participants and a 1-mile fun route suitable for families and casual snowshoers. Participants are encouraged to dre..

The Gothic Mountain Tour is a scenic running event taking place in Crested Butte, Colorado, featuring two courses: a 23.5-mile competitive race and a 17.85-mile recreational race. This challenging event offers participants a unique opportunity to circumnavigate the stunning Gothic Mountain, making i..

The Desert RATS Trail Running Festival by UTMB offers an exciting weekend of trail running in the stunning landscapes of Fruita, Colorado. With four unique race distances over three days, the festival caters to both novice and experienced runners. Participants can enjoy breathtaking views of the Col..

Adventure Fest at 18 Road is an exhilarating weekend event in Fruita, Colorado, celebrating the spirit of adventure sports. Scheduled for May 10-11, 2025, it features a variety of activities including the Fruita Trail Half Marathon, Sarlacc Attack 50K mountain bike race, and the Dirty Edge Gravel ra..

The Fruita Trail Half Marathon is an exciting 13.8-mile race set in the stunning desert landscape of Fruita, Colorado. Scheduled as part of the Adventure Fest weekend, this event features a scenic loop course with challenging climbs and breathtaking views of the surrounding buttes and mesas. Partici..

The Sky Pilots Ouray Backyard Ultra is a unique running event held in Ouray, Colorado, featuring a "last person standing" format. Participants complete a 4.167-mile course, and if they finish within an hour, they continue to run each hour until only one runner remains. The course is designed to be a..

The Dynafit Boneyard Boogie is a popular running event held in Eagle, Colorado, featuring two race distances: a 14K and a 6K. This event is part of the Vail Trail Running Series and attracts participants of all skill levels, offering a scenic and challenging course through the beautiful landscapes o..

The Mt Sopris Run-Off is an exciting running event taking place in Carbondale, CO, featuring two race distances: a 10-Mile and a 25k. Scheduled for May 18, 2025, this race will showcase the stunning "Up & Over" single track trail, starting at Flying Dog Ranch and finishing at Rock Bottom Ranch in Ba..

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 Ouray 100 Mile Endurance Run is a challenging ultramarathon set in the breathtaking San Juan Mountain range of Colorado. Participants face approximately 41,862 feet of elevation gain over the course of the race, making it one of the toughest endurance events. Runners must complete eight hours of..

The Audi Power of Four Trail Run is a scenic running event held in Aspen, Colorado, featuring a variety of trail distances. Participants can choose from three options: a challenging 50K run, a 25K run, or a 10K run, allowing runners of different skill levels to join in. The event showcases the beaut..

The Powderhorn Mountain Ultra and Vert Challenge, taking place at Powderhorn Ski Resort in Mesa, CO, offers an exhilarating test of endurance on July 19, 2025. Participants can choose between a 12-hour or 6-hour race, tackling a challenging 10K loop with significant elevation gain or focusing on ver..

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 course offers a scenic loop with approximately 5,800 feet of vertical gain, taking runners through alpine meadows and past iconic landmarks like Br..

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 High Five 100 is an ultra-running challenge held in Lake City, CO, designed for elite runners seeking a rigorous test of endurance. Participants must navigate a course that includes 22 designated locations, comprising 6 checkpoints for crew support and 16 proof points to verify their journey. Th..

The Telluride Mountain Run is a challenging and technical race set in the stunning San Juan Mountains near Telluride, Colorado. Participants can choose from three demanding routes: 40 miles, 24 miles, and 13 miles, all featuring old mining roads, singletrack trails, and alpine tundra. Runners will n..

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 nearly two m..

The Deep Creek Trail Half Marathon is a scenic trail running event taking place in Telluride, Colorado. The race begins at Last Dollar Road near the Telluride Airport and features a challenging 13-mile course that winds through beautiful Aspen-filled woods along the Deep Creek Trail. Participants wi..

The Crested Butte Ultra is an exciting running event set in the picturesque Crested Butte, Colorado, known for its exceptional trails. Participants can choose from three race distances: 50 Miler, 55K, and 35K, all of which traverse the stunning landscapes of Gunnison National Forest. Runners will en..