Plateau Situated in southwest China, it is the largest plateau in China,
covering 2.5 million square km, or nearly a quarter of the national total
land area. With an elevation averaging between 3,000 and 5,000 meters,
it is also the highest plateau on earth, and is known as the "roof
of the world." As it is surrounded and traversed by several snow-capped
mountain ranges, like the Kunlunshan, Qilianshan, Hengduanshan and Himalayan
mountains, which abound in glacier, the Qinghai-Tibet Plateau is where
many of China's major rivers originate.