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 partial dirt roads. It begins at the town of Edgemont and journeys northward through the heart of the amazing Black Hills. The easiest way to get onto the trail is to park on the side of 2nd Avenue at the city park and head north toward the railroad tracks. You'll make your trip along abandoned rail lines and cross wooden bridges, and then also pass by the Elk Mountains before getting the Minnekahta Trailhead. You can purchase a Mickelson Trail pass at a self-service station along the trail or online.