The North Caucasus, or Ciscaucasia, is a subregion in Eastern Europe governed by Russia. It constitutes the northern part of the wider Caucasus region, which separates Europe and Asia. The North Caucasus is bordered by the Sea of Azov and Black Sea to the west, the Caspian Sea to the east, and the Caucasus Mountains to the south. The region shares land borders with the countries of Georgia and Azerbaijan in the South Caucasus. Located in the south of the region, Mount Elbrus is the tallest peak in Europe. Krasnodar is the most populous among the urban centres in the region.