Ulken-Karoy

Ulken-Karoy or Ulken Karaoy, meaning "Big Karoy" (Kazakh: Үлкен Қараой; Russian: Улькен-Карой or Большой Карой —Bolshoy Karoy),[1][2] is a salt lake in Akzhar District, North Kazakhstan Region, Kazakhstan.[3][4][5]

Ulken-Karoy
Үлкен Қараой / Улькен-Карой
Sentinel-2 image of the lake in 2020
Ulken-Karoy is located in Kazakhstan
Ulken-Karoy
Ulken-Karoy
LocationIshim Plain
West Siberian Plain
Coordinates53°59′N 71°57′E
Typeendorheic
Primary inflowsAshchisu and Karasu
Basin countriesKazakhstan
Max. length67.7 kilometers (42.1 mi)
Max. width11.9 kilometers (7.4 mi)
Surface area305.5 square kilometers (118.0 sq mi)
Surface elevation57 meters (187 ft)
IslandsOne

The lake lies about 60 kilometers (37 mi) to the northwest of the northern end of larger Siletiteniz lake. 40 kilometers (25 mi) to the east lies lake Teke. The nearest inhabited localities are Kulykol and Talshik.[6]

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.[7] It is an endorheic lake sharing the same depression as lakes Teke in the east and Kishi-Karoy in the west.[8] 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 5 square kilometers (1.9 sq mi). 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.[9]

Ulken-Karoy lake is surrounded by a strip of salt marshes. The Ashchisu and Karasu are the main rivers flowing into the lake.[6][9]

See also

References
  1. қазақстан республикасының мемлекеттік жіктеуіші - КЛАССИФИКАТОР АДМИНИСТРАТИВНО – ТЕРРИТОРИАЛЬНЫХ ОБЪЕКТОВ
  2. Площадь озер Казахстана (Таблица)
  3. "N-42 Topographic Chart (in Russian)". Retrieved 20 July 2022.
  4. "N-43 Topographic Chart (in Russian)". Retrieved 20 July 2022.
  5. Lakes in the Central Kazakhstan
  6. Google Earth
  7. North Kazakhstan Region - Minerals and Water Resources
  8. The Origin of the Depression Lake Systems
  9. УлькенКарой; Great Soviet Encyclopedia in 30 vols. — Ch. ed. A.M. Prokhorov. - 3rd ed. - M. Soviet Encyclopedia, 1969-1978. (in Russian)
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