Volga River

Volga River, chief tributary of Russia and the longest in Europe. It rises in the Valdai Hills, northwest of Moscow, and flows 2,293 mi (3,690 km) through Gorki, Kazan, Kuibyshev, Saratov, Volgograd, and Astrakhan to its Caspian Sea delta. Draining an area of some 530,000 sq mi (1,372,700 sq km) it is the main artery of the world's greatest network of commercial waterways linking the White, Baltic, Caspian, Azov, and Black seas.