Trail Running calendar near Aspen 2026-2027

Join the USCSA Cross Country Ski Racing Festival at Snow Mountain Ranch in Granby Colorado on Jan 24 and 25 2026. Collegiate teams and middle and high school racers take on classic distances and a skate sprint over two action packed days.

Join the Gothic Mountain Tour in Crested Butte, a fundraising Nordic ski with competitive 23.5 miles and recreational 17.85 miles options. Limited to 200 skiers, enjoy alpine scenery and a festive finish at Magic Meadows Yurt.

Join the 21st Run Through Time Trail Marathon and Half Marathon in Salida Colorado on March 14 2026 for scenic high country trails and Arkansas Valley views. Limited fields and varied distances make this a memorable spring trail challenge.

Race The Ranch is a snowshoe race at Snow Mountain Ranch near Granby, Colorado on April 4, 2026, offering 5k, 25k and 50k looped courses over scenic groomed and singletrack snow trails. Finishers receive a custom beanie and engraved Miir ca..

Take on the Collegiate Peaks Trail Run in Buena Vista Colorado with 25 or 50 mile options through stunning high country. Mark the 36th anniversary with a memorable mountain trail challenge.

Challenge yourself on the scenic Up & Over single track from Flying Dog Ranch to Rock Bottom Ranch in Carbondale, CO. Choose 10 mile or 25K routes and enjoy a trail running weekend with films and community vibes.

Celebrate Memorial Day weekend with the Spirit Trail Race in Buena Vista, Colorado, a scenic trail event with marathon, half marathon and 9k options. Start in town square, enjoy Paddlefest fun, and support local nonprofits.

Celebrate Memorial Day with Pyro's Push It Up River Trail Run on May 25 in New Castle, honoring a fallen hero. Choose a family friendly 3.5 km riverside run or the scenic 7.7 km with hilltop climbs, available on site or virtually.

Hit alpine single track at Granby Ranch in Granby, Colorado on June 6, 2026 with options from 6 Mile to 50k and a unique Elevation Challenge. Expect rugged scenery, well stocked aid stations, and a lively resort finish.

Join the Leadville Trail 100 Run Camp in Leadville, Colorado, June 19 to 21 for a three day preview of the LT100 course. Enjoy guided day and night runs, gear demos, shuttles and recovery services for a full race ready experience.

Race in the Clouds at Alma Cemetery Meadow offers high country trail running, mountain bike races and weekend camping at 10,600 feet. Choose from a trail half, 10K, multiple bike distances and free kids races for a weekend of alpine adventu..

Run the Life Time Leadville Trail Marathon or Heavy Half on June 27, 2026, tackling high alpine singletrack and dirt roads through historic mining country up to Mosquito Pass at 13,185 feet. Expect a challenging, possibly snowy race with fu..

Celebrate July 4th with the Rendezvous Run for Independence, a community 5K run or walk in Winter Park, CO. Enjoy scenic Fraser River Trail views and finish at the Rendezvous Event Center for postrace refreshments, awards and prizes.

High Trails Retreat in Buena Vista July 9 to 12 2026 offers daily runs of 10 to 20 miles and an optional Hope Pass or Sawatch 14er climb. Stay riverside, share meals, relax by the river and pick routes with the group.

Experience high alpine trails above 10,000 feet at the Silverheels Trail Runs in Como, Colorado, July 10 to 11, 2026, with distances from 10 mile to 100 mile across scenic single track, meadows and historic mining sites. Limited fields make..

Take on alpine trails at Grin & Bear It in Crested Butte on July 11 2026, with run and mountain bike distances for all levels. Expect big climbs, sweeping alpine views and a start and finish at Crested Butte Nordic Center.

Join the Life Time Silver Rush 50 Run in Leadville for a high alpine 50 mile out and back plus 15 mile and 5K juniors. With seven aid stations and Leadville Trail 100 Run qualifier spots, this is a true mountain challenge.

High Lonesome 100 is a high elevation 100 mile loop ultramarathon in Colorado's Sawatch Range near Mount Princeton. Expect about 23,000 feet of climbing, long above treeline ridgelines and stunning mountain singletrack.

Run scenic mountain trails around Aspen Snowmass at the Audi Power of Four Trail Run on July 18, 2026. Choose from 10K, 25K or an epic 50K and enjoy challenging terrain, alpine views and Audi supported race day energy.

Join TransRockies Run Pass to Pub for three days of alpine trail racing from Hope Pass to Red Cliff in Leadville, Colorado, with fully supported camp life, live music, showers and catered meals. Limited to 500 runners July 19 to 21, 2026.