Caucasus Mountains

The Caucasus Mountains is a mountain range between the Black and Caspian Seas, and is often considered the southeastern limit of Europe. It forms two distinct chains:

Greater Caucasus
The Greater Caucasus range extends from the vicinity of Sochi on the northeastern shore of the Black Sea, generally trending east-southeast and reaching nearly to Baku on the Caspian. For most of its length it is the border of Russia with Georgia and Azerbaijan. The peaks of the Greater Caucasus include Mount Elbrus, at 5,642 m the highest mountain in Europe.

Lesser Caucasus
The Lesser Caucasus runs parallel to the greater range, at a distance averaging about 100 km (60 mi) south. The borders of Georgia, Armenia, and Azerbaijan run through the range, although its crest does not usually define the border.