The biggest river in Europe is the Volga River. This is also the most important river in Russia. Moscow is located in the drainage basin of this river. The Volga River contains a few of the largest reservoirs in the world.
The Volga River rises from the Valdai Hills. The discharge point is in the Caspian Sea. Some of the tributaries are the Kama, Oka, Vetluga and Sura rivers. The Volga is 99 miles long, and it includes 500 channels and other smaller rivers. This large river freezes for three months each year. The Volga valley is an important petroleum resource.