Sevan is one of the 3 largest lakes in the Armenian highland.
In ancient times it was called Gegharkunik or Geghama Sea (Geghama Tsov). Sevan is the largest lake in Caucasus as well as one on the largest and highest freshwater lakes of the world.
The lake surface is at an altitude of 1897m above sea level. Its depth is 80m, an area-1260km?, lengh-70km, width-55km and the volume is 58billion cubic metres.
In summer, the middle temperature of lake surface is 18-23 degrees above zero. In winter the lake is partly covered with ice.
The Lake Sevan has tectonic, volcanic origin. From the geological point of view the Great Sevan is an ancient, intermountain concavity, where there was a water basin in the remote past. A separate lake has been existed as well in the place of the Small Sevan.
See more about mountainous Sevan lake »