For the most part, the eastern shore of the middle Caspian is precipitous, with the sea destroying the margin of the limestone plateaus of Tüpqaraghan and Kendyrli-Kayasansk.
The drainage basin of the sea covers some 1,400,000 square miles (3,625,000 square km).
The sea contains some 63,400,000,000 acre-feet or 18,800 cubic miles (78,200 cubic km) of water—about one-third of Earth’s inland surface water.
Caspian Sea, Russian Kaspiyskoye More, Persian Darya-ye Khezer, world’s largest inland body of water.
It lies to the east of the Caucasus Mountains and to the west of the vast steppe of Central Asia.
Caspian shipping and fisheries play an important role in the region’s economy, as does the production of petroleum and natural gas in the Caspian basin.