Pagsum Lake

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Pagsum Co
View north-east from Tashi Island
Location Gongbo'gyamda County
Coordinates 30°00′51″N 93°57′01″E / 30.01417°N 93.95028°E / 30.01417; 93.95028Coordinates: 30°00′51″N 93°57′01″E / 30.01417°N 93.95028°E / 30.01417; 93.95028
Basin countries China
Max. length 18 km (11 mi)
Surface area 27 km2 (10 sq mi)
Max. depth 120 m (390 ft)
Surface elevation 3,700 m (12,100 ft)

Dragsum Tsho (tib.: brag gsum mtsho, Tibetan:བྲག་གསུམ་མཚོ་, Pagsum Co (Chinese: Bāsōng Cuò 八松错), literally meaning “three rocks” in Tibetan,[1] is a lake covering 28 square kilometres in Gongbo'gyamda County, Nyingchi Prefecture of the Tibet Autonomous Region in China, approximately 300 km east of Lhasa in Tibet. At 3,700 metres over sea level it is about 18 km long and has an average width of approximately 1.5 kilometres. The deepest point of the green lake measures 120 metres. The lake is also known as Gongga Lake.


  1. ^ Guójiā cèhuìjú dìmíng yánjiūsuǒ 国家测绘局地名研究所: Xīzàng dìmíng 西藏地名 / bod ljongs sa ming བོད་ལྗོངས་ས་མིང། (Tibetan Place Names; Beijing, Zhōngguó Zàngxué chūbǎnshè 中国藏学出版社 1995); ISBN 7-80057-284-6, p. 15. The name is sometimes confused with Basum (Basong Xiang 巴松乡 / dba’ gsum དབའ་གསུམ) in Tingri County of Shigatse Prefecture, due to the similarity of the Chinese names.