sentences:  This Tianchi lies on the north side of the Bogda Shan ("Mountain of God", "Bogda" is a Mongolian word meaning "God") range of the Tian Shan ("Mountain of Heaven"), about south of Fukang and east (straight-line distance) of Ürümqi.It is an alpine drift lake shaped in the Quaternary Glacier period.Formerly known as Yaochi ("Jade Lake"), it was named Tianchi in 1783 by Mingliang, the Qing Commander of Urumqi Command.