Hot Springs is the eleventh-largest city in Arkansas and the county seat of Garland County. The city is located deep within the Ouachita Mountains among the U.S. Interior Highlands, and is set among several natural hot springs for which the city is named. The center of Hot Springs is the oldest federal reserve in the United States, today preserved as Hot Springs National Park. The perceived healing properties of the hot spring water were discovered centuries ago, and the waters were legendary among several Native American tribes. Following federal protection in 1832, the city developed into a successful spa town. Incorporated in January 10, 1851, the city has been home to Major League Baseball spring training, illegal gambling, speakeasies and gangsters, horse racing at Oaklawn Park, the Army and Navy Hospital, and 42nd PresidentBill Clinton.