(or Nain Singh), mountain range in China, to the southwest of the Tibetan Highlands. It extends for approximately 600 km between 80° and 86° E long. Its height is 4,500–5,000 m; the highest peak is Aling Kangri Mountain (7,315 m).
The peaks of the ridge are alpine in topology. Above 4,500 m there are glaciers and permanent snow. The landscape of high mountain wildernesses predominates. The Senge River, source of the Indus, rises on the southern slopes of Aling Kangri at a height of 5,500 m.