Runners follow an out-and-back loop course at the Xterra Harbison Half Marathon, which takes runners through the Harbison State Forest just outside Columbia, S.C. Both the half marathon and the 5K start at the meadow near the Gazebo shelter just off the park road, and from there head out on a clockwise loop route around the edges of the forest, along the Connector, Stewardship, Midlands Mountain and Firebreak trails.
(MORE: XTERRA Harbison Half Marathon event details)