Trunk Highway 236 served as an east-west route crossing the Bois de Sioux River and, with another road in South Dakota, connecting U.S. Route 75 with U.S. Route 81.
Mississippi River | River Thames | Amazon River | Columbia River | Hudson River | Colorado River | Potomac River | river | Ohio River | Sioux | Missouri River | Delaware River | Murray River | River Tyne | Madeira River | Volga River | River Nene | River Clyde | River Trent | River Severn | Amur River | W. E. B. Du Bois | River Wear | Allegheny River | Red River | Dnieper River | Yarra River | Paraná River | River Tees | Fraser River |