|Location||Coqên County, Ngari Prefecture, Tibet Autonomous Region, China|
|Catchment area||946 km2 (400 sq mi)|
|Max. length||32.1 km (20 mi)|
|Max. width||7.2 km (4 mi)|
|Surface area||146.4 km2 (100 sq mi)|
|Surface elevation||5,201 m (17,064 ft)|
Jiesa Lake (Chinese: 杰萨错; pinyin: Jiésà Cuò) or Gyesar Tso (Tibetan: སྒྱེ་གསར་མཚོ, Wylie: sgye gsar mtsho, ZYPY: Gyesar Tso) is a lake in Coqên County in the Ngari Prefecture of the Tibet Autonomous Region of China. It is located southwest of Coqên Town. Fed by 27 small streams, it is 32.1 km long and 7.2 km wide and has an area of 146.4 square km.
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