The Caucasus or Caucasia is a region in Eurasia bordered on the north by Russia, on the southwest by Turkey, on the west by the Black Sea, on the east by the Caspian Sea, and on the south by Iran. The Caucasus includes the Caucasus Mountains and surrounding lowlands. The Caucasus Mountains are commonly reckoned as a dividing line between Asia and Europe, and territories in Caucasia are variably considered to be in one or both continents. The northern portion of the Caucasus is known as the Ciscaucasus and the southern portion as the Transcaucasus. The highest peak in the Caucasus is Mount Elbrus (5,642 m) which, in the western Ciscaucasus in Russia, is generally considered the highest point in Europe.
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