Hoh Xil
Hoh Xil or Kekexili (Mongolian for "Blue Ridge", also Aqênganggyai for "Lord of Ten Thousand Mountains"), is an isolated region in the northeastern part of Qinghai-Tibet Plateau.[2] 45,000 square kilometres of the Hoh Xil region, at an average elevation of 4,600 metres, were designated a national nature reserve in 1995.Bamaoqiongzong covers an area of 300 km2 and contains a perfectly preserved edifice NE of the summit and a lava flow that overlies Quaternary lake deposits .A cone in the Kekexili caldera, once thought to be observed in eruption on a satellite photo in 1973, is now considered not to have been historically active.[6] The hitherto little-known region, as well as the struggling Tibetan antelope, or chiru, became household names in China upon the release of the film Kekexili: Mountain Patrol in 2004.