Mines Of Spain 100 - Dubuque, IA
Dubuque, United States • 17-18 Oct 2025
The Mines of Spain 100 is an ultra-marathon event featuring both 100-mile and 100-kilometer races, set in the picturesque bluffs, prairies, and forests of eastern Iowa's Driftless region. The race course, approximately 20 miles long, offers a diverse range of terrains, including steep technical single track and rolling dirt paths, making it suitable for both novice and experienced runners. The event emphasizes a grassroots feel while ensuring meticulous organization, with proceeds supporting local trail maintenance and projects. Participants can expect a rewarding experience amidst the scenic backdrop of the Mississippi River valley. Visit the organization's website for the most recent information.