Qinghai Lake (Chinese: 青海湖), Kokonor (Mongolian : Хөх нуур) or Tsongon Po (Tibetan: མཚོ་སྔོན་པོ།) is the largest lake in the People's Republic of China. Located in Qinghai province on an endorheic basin, Qinghai Lake is classified as a saline and alkaline lake. Qinghai Lake has a surface area of 4,317 square km; an average depth of 21m, and a maximum depth of 25.5m as measured in 2008. Both the current Chinese name "Qinghai" and the older Mongolian name Kokonor translate to "Blue Lake" or "Teal Sea", are used in English. Qinghai Lake is located about 100 kilometres (62 mi) west of the provincial capital of Xining (Tib:Ziling ཟི་ལིང་།) at 3,205 m (10,515 feet) above sea level in a depression of the Tibetan plateau. Twenty-three rivers and streams empty into Qinghai Lake, most of them seasonal.