Qinghai Lake in the north-east of the Qinghai-Tibet Plateau, the lake elevation 3,196 m, with an average depth of 18.6 meters, the deepest 32.8 m, length 360 km Lake. Things 106 kilometers long, 63 kilometers wide north-south area of 4,583 square kilometers, the water capacity of 85.4 km 3. Buha River, ganjig, such as more than 40 of them into the river. Qinghai Lake did not drain exports, China's largest inland lagoons. Qinghai Lake since about 200 to 20 million years ago because of crustal movement and the formation of a rift lake, the lake water into the Yellow River began, due to the surrounding mountains rise Yam Cypriot outflow of the lake's water, have formed today's inland lakes the.