Black Hills 100 - Sturgis, SD

The Black Hills 100 is a challenging ultramarathon held annually in late June in Sturgis, South Dakota, along the Centennial Trail (#89) and Deerfield Trail (#40). The event offers four distances: 100 miles, 50 miles, 50 kilometers, and 30 kilometers. The 100-mile race features approximately 108 miles with over 16,700 feet of elevation gain, following an out-and-back course from Sturgis to Silver City and back.

The terrain includes single-track dirt trails, rocky sections, old logging roads, and ATV trails, with minimal pavement. The race is known for its relentless hills and scenic Black Hills landscape. Aid stations and drop bag options are available, and the top finishers receive unique hand-painted buffalo skull trophies. Visit the organization's website for the most recent information.