Vicksburg, the historic river city that sits on the Yazoo river. Wait! You thought it sat on the Mississippi river? It did until 1876 when the river changed course and the Yazoo was diverted into the old channel to provide a waterway for the city. Otherwise the city would have been left high and dry and this was the era when most transportation was by steamboat. The picture shows the Vicksburg waterfront and the water is only several hundred yards wide. The Mississippi this far south is well over a mile wide. The confluence is now several miles south of the downtown riverfront.