Race in the Clouds Dirt Festival

The Leadville Trail Marathon and Heavy Half is a challenging running event that takes participants through the historic mining district of Leadville, Colorado. The marathon covers 26.4 miles, while the Heavy Half spans 15.4 miles, both reaching high altitudes, with the marathon topping out at Mosqui..

The Silverheels Trail Runs, part of the Human Potential Running Series, is an annual event featuring multiple race distances, including a 100-Mile, 100k, 50-Mile, 60k, 19-Mile, and 10-Mile. Set in the stunning Colorado Front Range at elevations over 10,000 feet, the course offers a mix of single tra..

The Leadville Silver Rush 50M is a challenging 50-mile trail run set against the stunning backdrop of the Rocky Mountains. Participants will navigate a course featuring significant elevation gain, technical climbs, and breathtaking views, making it a true test of endurance and skill. The event serve..

The Summit 200 is an extraordinary 200-mile mountain race set in Summit County, Colorado, featuring a challenging loop that showcases stunning hiking trails, forest roads, and scenic views. Runners will experience significant elevation changes, with the lowest point above 9,000 feet and sections rea..

The Sheep Mountain Ultras, part of the Human Potential Running Series, is a challenging trail running event held annually in Fairplay, Colorado. The 10th edition will feature a 50-mile race, a 50k, and a half marathon, all set against the stunning backdrop of the South Park Valley. With an average e..

The Leadville Trail 100 Mile Run, known as the "Race Across the Sky," is a prestigious ultramarathon held annually in Leadville, Colorado. Established in 1983, this grueling event challenges participants with a 100-mile out-and-back course that features extreme elevation changes, including a peak at..