Rustic cabin along the Roaring Fork Motor Nature Trail, a narrow, one-way, low-speed (often 10 m.p.h.), winding loop, close to the town of Gatlinburg, in the Great Smoky Mountains National Park, the most-visited national park in the United States. The park sprawls over more than 500,000 acres of mostly old-growth forest along ridges of the Smokies — a subset of the Blue Ridge Mountains — split almost evenly between Tennessee and North Carolina. Dedicated in 1940, the park was chartered in part to thwart increasing deforestation by lumbering interests. Photo by Carol Highsmith, 2021.