The River of Lyons is a combination of two rivers, the Saone and the Rhone. The Saone is a river in eastern France that rises in the Vosges mountains and flows into the Rhone near Lyon. The Rhone is a major river in Europe that runs through Switzerland, France, and the Mediterranean Sea. Together, the Saone and Rhone form the River of Lyons, which is an important waterway for transportation and commerce.