Image courtesy of the Earth Science and Remote Sensing Unit, NASA Johnson Space Center /  From Image Analysis Laboratory, NASA Johnson Space Center, Mission-Roll-Frame:  JSC2016E073417    (http://eol.jsc.nasa.gov)

The Caucasus is a region at the border of Europe and Asia, situated between the Black and the Caspian seas.

It is home to the Caucasus Mountains, which contain Europe's highest mountain, Mount Elbrus, 5,642 metres. Politically, the Caucasus region is separated between northern and southern parts. The southern parts consist of independent sovereign states, and the northern parts are under the jurisdiction of the Russian Federation.