Hot Springs National Park is a national park of the United States in central Garland County, Arkansas, adjacent to the city of Hot Springs. Hot Springs Reservation was initially created by an act of the United States Congress on April 20, 1832, to be preserved for future recreation. Established before the concept of a national park existed, it was the first time that land had been set aside by the federal government to preserve its use as an area for recreation. Part of the natural area is old-growth forest and recognized by the Old-Growth Forest Network. The hot spring water has been popularly believed for centuries to possess medicinal properties, and was a subject of legend among several Native American tribes. Following federal protection in 1832, the city developed into a successful spa town.