Lean Horse Ultra

The Lean Horse Ultra Marathon is an annual running event held in August in the scenic Black Hills of South Dakota, featuring a variety of race distances including 100 miles, 50 miles, 30 miles, and 20 miles, as well as a unique 30-mile Black Hills CrossFit Edition. Established in 2005, the race takes place on the George S. Mickelson Trail, known for its crushed limestone surface and gentle climbs, making it one of the best non-technical courses in the United States. The event attracts runners from all over, celebrating endurance and the beauty of the surrounding landscape. Visit the organization's website for the most recent information.