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 trail is mostly crushed limestone and packed gravel, along with some sections of dirt road. This route starts at the old lumber town of Dumont and travels fast downhill through the Black Hills National Forest to the Englewood Trailhead at Brownsville Road. Be sure to purchase a Mickelson Trail pass at a self-service station along the trail or online.