Hoh Xil is an isolated region in the northwestern part of the Qinghai-Tibet Plateau. It is China's least and the world's third-least populated area. Low temperature, rare rainfall and strong wind are the major features of Hoh Xil.

Hoh Xil, which means "beautiful girl" in Mongolian, is one of the main sources of the Yangtze River and covers 83,000 square kilometers at an average elevation of 4,800 meters, between the Tanggula and Kunlun mountain chains in the border areas of southwest China's Tibet Autonomous Region, northwest China's Qinghai Province and the Xinjiang Uyghur Autonomous Region.

Hoh Xil is the largest natural reserve area in China with highest altitude as well as one of the most primitive and well-preserved natural environment in the world.

Because of the high altitude and fierce weather, it is impossible for people to live there, and this is the very reason why Hoh Xil is the paradise of wild lives.

Being the paradise for wildlife and home to more than 230 species of wild animals, Hoh Xil has 20 of them under state protection, including the wild yak, the Tibetan antelope, the wild donkey, the white-lip deer, and the brown bear.