National Hydrometeorological Department
Ministry of Ecology and Natural Resources of Azerbaijan Republic

The Republic of Azerbaijan has an area of 86,600 square kilometers (km2) and a population of 7.77 million. Azerbaijan is located in the Kura River basin in the South Caucasus.

The principal river system is the Kura River and its tributaries the Araz (Aras) and Alazan (Alazani) Rivers that flow directly into the Caspian Sea. The river system of the country is divided into two groups: local and trans-boundary rivers.

The trans-boundary rivers in Azerbaijan are Kura River and its tributaries the Araz, Ganikh (Alazan) Rivers and other small rivers of the basin that discharge directly into the Caspian Sea. The Samur River flows along the Russian Azerbaijan border and Astarachay River flows along the Azerbaijan and Iran border.