Two world-class pedestrian paths traverse north-to-south through the Black Hills. Mickelson Trail follows an old rail line from Deadwood to Edgemont and Centennial Trail cuts cross-country from Bear Butte State Park to Wind Cave near Hot Springs.  However, there are a thousand other shorter trails all through the Black Hills, and the U.S. Forest Service manages 5,200 miles of roads – mostly old mining and logging roads that climb and dip deep into the canyons.  Some trails are only for hiking and biking, while other are open to ATV’s, snowmobiles, horses and even autos so get off the main highway and enter the forest.