March 16, 1987

Mammoth Spring State Park opened the state’s tenth Arkansas Welcome Center, just off U.S. Hwy. 63 and within sight of Missouri. Mammoth Spring State Park preserves the state’s largest natural spring—and one of the largest in the world. Approximately nine million gallons of water flow through the spring hourly. The spectacular stream of cold water is the chief source of the Spring River, a fishing and canoeing stream that is popular year-round because of its dependable flow. The park also preserves a fully restored nineteenth-century railroad depot.