Source: Wikipedia
See also
Countries:
Caucasus – Drainage basins
Abkhazia, Armenia, Artsakh, Asia, Azerbaijan, Black Sea, Caspian Sea, Caucasus, Ciscaucasia, drainage basin, Europe, Georgia, hydrographic basin, Iran, Lesser Caucasus, mountains, North Caucasus, Persian Gulf, river, Russia, South Ossetia-Alania, Transcaucasia, Turkey