In the mountains of western Arkansas, there's a place where rain waters are absorbed through crevices in the earth's surface, then warmed and enriched with minerals, percolating deep underground. The water then flows back to the surface in steaming hot springs, filling the cool mountain air with steam in the winter. It's a place that humans have been using for millennia for rest, relaxation, and healing. It's also our first piece of federally protected recreation land.

On this episode of America's National Parks, the American Spa — Hot Springs National Park.

Show notes and more info at nationalparkpodcast.com/hotsprings