Despite this, meltwater rivers and mineral springs fill the basins of the salt flat's four main sectionsmdashBieletan, Dabusun, Qarhan, and Huoluxun mdashwith about ten large but shallow lakes usually collectively occupying an area of about 460 sqkm : Suli Lake in the west, fed from the west by the Urt Moron; the Little and Big Biele Lakes beside it, fed from the south by the Tuolahai and Qingshui Rivers; West Dabusun and Dabusun Lake (the largest), in the center, fed from the south by the Golmud River; Dongling Lake to their northwest; Xiezuo and Tuanjie Lakes to their east, fed respectively by the intermittent Quanji and Shougong Rivers; and North and South Hulsan Lakes at the east end of the playa, fed from the east by the Qaidam, Nuomuhong, and Suolinguole Rivers.