High Quality Content by WIKIPEDIA articles Dragsum Tsho (tib.: brag gsum mtsho, Tibetan: བྲག་གསུམ་མཚོ་, Pagsum Co (Chinese: Bāsōng Cu 八松错), literally meaning "three rocks" in Tibetan, 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...