Best Mountain Trail: Art Loeb Trail (Pisgah National Forest, Asheville, North Carolina)
Credit: Aurora Photos / Alamy

Difficulty: Extreme

The Art Loeb gives trail runners all the glories and punishment they could ever hope for: rooty pistes through hardwood forests opening onto some of the highest grassy balds in the Southeast, with huge, 360-degree views. Along the way are knee-deep river crossings, interludes of slickrock balds, and 3,700 feet of climbing. The 30-mile trail starts just outside of Brevard, which is just south of the entrance to Pisgah, and intersects the Blue Ridge Parkway around the trail's midpoint, so you can shorten it or link with other trails to fashion loops suited to your skill level (and lung capacity).