South Yankton is a populated place in Cedar County, Nebraska, United States, located just south of Yankton, South Dakota, on U.S. Route 81. Gavins Point Dam is located four miles west of South Yankton on Nebraska Highway 121.
AdFind discounts on the best YanktonSouth Dakota Travel. Tripadvisor helps you spend less. Compare prices & save money with Tripadvisor® (World's largest travel website).