This 109 mile trail was such a treat to bike on when visiting SD. I am not an avid biker, but when I do bike, a great looking trail accompanied by even better scenery is always nice. An adventure trail it is not. If you can ride a mountain bike, you can bike this trail. But it's simplicity and beauty are well worth it. The mostly-gravel trail is wonderfully maintained, with trailheads ever 6-10 miles or so. It's part of the Rails to Trails program and named for the late great Governor Mickelson. Each trailhead is equipped with a small shelter, picnic tables, a bathroom (hole in ground), some bike racks, a well with drinking water, maps and directions, and a parking area. A $3 per person permit is required for use of the trail. Along the trail you will bike through tunnels, over bridges, passed some nice rock outcrops and lakes, along the highway or creek, and past towns, some quite historic. And while the trail follows the highway, it mostly does so at a distance so traffic noise is not distracting. Admittedly, I did not bike the entire 109 miles, so I can't speak for the entire thing, but this trail was incredibly pleasant, easily accessible, and there for nearly anyone to use. Only open to bikers, walkers, and horseback riders, this is a great way to explore a portion of the Black Hills. I think this trail is a gem and definitely worth a visit if you are in the area. read more