Caucasus Mountains

The Caucasus Mountains extend approximately 1,200 km (750 mi) along the border between Russia in the north and Georgia and Azerbaijan in the south, from the Black Sea in the west to the Caspian Sea in the east. Forming a natural boundary between Europe and Asia, they cover 440,000 sq km (170,000 sq mi) and rise to a maximum elevation of 5,64 2 m (18,510 ft) in Mount Elbrus.