Ozark National Scenic Riverways in southern Missouri was established by Congress in 1964 and dedicated in 1971 to protect the Current and Jacks Fork rivers across about 80,000 acres. It was the first national park area created to preserve a river system and is known for clear water, major springs, caves, and historic sites such as Alley Spring and its roller mill. Recreation defines much of the area, with floating, hiking, fishing, camping, and other outdoor activities drawing about 1.3 million visitors each year. Its creation followed a contentious political struggle over river management, land acquisition, and local opposition.