To skip ahead to different chapters in the review, make use of the content navigation tool above. While you get gas and perhaps stock up on supplies, take advantage of the gaming area, complete with Vegas-style slots and $1 beers for players! If you get carried away, the Fort Randall is just across the road and offers overnight accommodation. The Yankton Sioux Travel Plaza is primarily a refueling station for visitors passing through the Yankton Reservation. Yankton Sioux Travel Plaza Casino Games.Yankton Sioux Travel Plaza: What to Expect.