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George S. Mickelson Trail
The premier trail within the South Dakota State Park system, this 109-mile jewel stretches the length of the Black Hills. It follows an abandoned railroad bed, and climbs gently into jagged cliffs and pine forests. The Mickelson Trail has a crushed limestone surface and wide path. It tops out at 6,100 feet but rarely exceeds a 4-percent grade (making it perfect for leisure riders). Trestle bridges and railroad tunnels add to the charm of the trail. Start your adventure at any of 15 trailheads.