The Tibet Autonomous Region  is located in the southwest part of the Qinghai-Tibet Plateau. It borders on Sichuan and Yunnan provinces to the east, Qinghai and Xinjiang to the north, and shares borders with  India, Nepal,  Sikkim, Bhutan and Burma to the south, and bounded by Kashmir to the west.
 The region covers more than 1.2 million square kilometers,  accounting for one eighth of China’s total land mass, and ranking second in China.
 Tibet has various complex landforms such as high and steep mountains, deep valleys, glaciers, bare rocks and gobi deserts. All places in the region lie at an average altitude of more than 4,000  meters.
 It is roughly divided into four areas: the north Tibet plateau, the  south Tibet valley, east Tibet mountains and valleys, and Himalaya  Mountains.
 It is bitterly cold in winter, with a marked difference in temperature  between daytime and night. It features scarce precipitation and a  sharp contrast between the dry and wet seasons. It is dry in winter  and spring, with frequent occurrence of strong winds, as well as a low oxygen content.
 Tibet is so sunny as to have an annual sunshine of between 1,500  and 3,400 hours. It has a short frost-free period, usually ranging from  120 to 140 days a year.
 Tibet has a population of 2.61 million, 92.2 percent of whom are  Tibetans, or 2.41 million. Apart from Tibetans, there are other ethnic  groups such  as Han, Hui, Monba, Lhoba.  Enditem  

Tibet’s Population Increases 400,000 in Ten Years
  The fifth census of the Tibet Autonomous  Region shows that Tibet ‘s population has shot up 420,300 in ten years.
  The region currently has a total population of 2.62 million ， up  420,300 ， compared to the figure of 2.2 million as indicated in the  fourth census ， rising at an average annual rate of 40,700 ， or 1.7  per cent.
  Of all residents in the region， Tibetans number 2.41 million ， accounting  for 92.2 percent. Han people， the majority in most of China， number  155 ，300 ， 5.9 percent of the total.
  Other ethnic minorities have a combined population of 49，900 ， 1.9  percent of the total. Enditem