At the Ice Age Trail Run half marathon, runners follow an out-and-back course that starts and finishes near the trailhead for the Nordic Trail inside the forest, just off County Road H. From there, runners make a double loop along a series of established trails through the forest, including the Nordic Trail, Purple Trail, Green Trail and Blue Nordic Trail. (Note: The map below shows only one loop; runners in the half marathon will make this loop twice to complete their race.)
(MORE: Ice Age Trail Half Marathon event details)