Ulken-Karoy or Ulken Karaoy, meaning "Big Karoy" (; or Большой Карой —Bolshoy Karoy), is a salt lake in Akzhar District, North Kazakhstan Region, Kazakhstan.Lakes in the Central Kazakhstan
The lake lies about to the northwest of the northern end of larger Siletiteniz lake. to the east lies lake Teke. The nearest inhabited localities are Kulykol and Talshik.
Geography Lying in the southern part of the Ishim Plain, south of the Russian border, Ulken-Karoy is one of the main lakes of the region. It is an endorheic lake sharing the same depression as lakes Teke in the east and Kishi-Karoy in the west.The Origin of the Depression Lake Systems The lake is shallow and its bottom is muddy. The shores are flat. In years of drought Ulken-Karoy almost completely dries up and its water surface may decline to barely . An enormous island occupies the middle of the lake. It is joined to the mainland in its southern part, except during periods of high water. In such periods the water of the lake becomes fresh.УлькенКарой; Great Soviet Encyclopedia in 30 vols. — Ch. ed. A.M. Prokhorov. - 3rd ed. - M. Soviet Encyclopedia, 1969-1978. (in Russian)
Ulken-Karoy lake is surrounded by a strip of salt marshes. The Ashchisu and Karasu are the main rivers flowing into the lake.Google Earth
See also List of lakes of Kazakhstan
References
External links
Expeditions along the watersheds of the middle forest-steppe of the Omsk region (in Russian) ИНТЕЛЛЕКТУАЛЬНАЯ НАЦИЯ В ФОКУСЕ ГУМАНИТАРНЫХ ТЕХНОЛОГИЙ (in Russian)