The term 'River in Russia' can be represented by seven different rivers: the Volga (5 letters), Ural (4 letters), DON (3 letters), Lena (4 letters), Msta (4 letters), Neva (4 letters), Desna (5 letters), and Neman (5 letters). The Volga is the longest river in Europe, stretching from the Valdai Hills to the Caspian Sea. The Ural River flows through the Ural Mountains and is a major tributary of the Caspian Sea. The DON River is one of the five major rivers of European Russia and is the fourth longest river in Europe. The Lena River is the 11th longest river in the world and is located in Siberia. The Msta River is a tributary of the Volga River and is located in the Novgorod region of Russia. The Neva River is a major river in northwestern Russia and flows into the Gulf of Finland. The Desna River is a major tributary of the Dnieper River and is located in central Ukraine. Finally, the Neman River is a major river in Belarus and Lithuania and is a tributary of the Baltic Sea.