Runners start the Triple D Winter Race Half Marathon course in Durango, and from there enter the Heritage Trail. This smooth, compacted crushed gravel trail stretches some 26 miles between Dyersville and Dubuque, and the 13.1-mile route will keep runners on it for the entire race, turning around just north of Graf before returning to the finish line back in Durango.
Note: The course map above provides the approximate route for the race. Though every effort has been made to ensure its accuracy, changes are sometimes made to race routes due to weather conditions, road closures or other circumstances that can require a course to be changed. If you see an error above, email us here.