The entire Mickelson Trail is 109 miles long and has a total of 15 trailheads, 4 rock tunnels, and several railroad bridges. The surface of the route is mostly crushed limestone and packed gravel, along with some sections of dirt road. This route starts in Hill City and travels northward through the Black Hills National Forest to the Mystic Road Trailhead. You'll enjoy the scenery while going alongside a section of Crooked Creek and while coming into the historic mining town of Mystic. You can make this a half-day one way trip or a full-day out and back trip. Be sure to purchase a Mickelson Trail pass at a self-service station along the trail or online.