(South Dakota)
Pierson Ranch Recreation Area is a state recreation area in Yankton County, South Dakota in the United States. The recreation area is 60 acres (24 ha) and lies directly below Gavins Point Dam and Lewis and Clark Lake and is adjacent to Lake Yankton. The area is open for year-round recreation including camping, swimming, fishing, hiking and boating. It is 4 miles (6.4 km) west of Yankton. (Ref: https://en.wikipedia.org/wiki/Pierson_Ranch_Recreation_Area)