China is a Country in eastern Asia.China has several topographic regions. The southwestern area contains the Plateau of Tibet, which averages more than 13,000 ft above sea level; its core area, averaging more than 16,000 ft in elevation, is called “the Roof of the World” and provides the headwaters for many of Asia’s major rivers. Higher yet are the border ranges, the Kunlun Mountains to the north and the Himalayas to the south. China’s northwestern region stretches from Afghanistan to the Northeast Plain. The Tien Shan separate China’s two major interior basins, the Tarim Basin and the Junggar Basin. The Mongolian Plateau contains the southernmost part of the Gobi Desert.