New River State Park is a North Carolina state park in Ashe County, North Carolina in the United States. Located near Jefferson, North Carolina, it covers 3,323 acres (13.45 km2) in the protected New River watershed. The New River is one of the oldest rivers in the United States. It is considered by some geologists to be possibly one of the oldest rivers in the world, between 10 million and 360 million years old. New River State Park is open for year-round recreation, including canoeing, hiking, picnicking, fishing, camping and environmental education. The park is just off U.S. Route 221 in northwestern North Carolina.