The Russian Range is a mountain range that stretches across Russia and its neighboring countries. It consists of four main mountain ranges: the Ural Mountains (4 letters), the Urals (5 letters), the Caucasus (8 letters), and the Altai Mountains (5 letters). The Ural Mountains form a natural border between Europe and Asia, while the Urals are located in western Russia. The Caucasus Mountains are located in the South Caucasus region, and the Altai Mountains are located in Central and East Siberia. Together, these four mountain ranges form the Russian Range.