Mt. Tanggula

Tanggula Mountains (also called Dangla Mountains) are a mountain range in Tibet. It is located on the Tibetan Plateau with its main ridge averaging more than 5,000 m. The Yangtze River originates in this mountain range and the Geladandong (at 6,621 meters) is the tallest peak in the range. A pass through these mountains, Tanggula Mountain Pass, is the highest railway in the world at 5,072 meters above sea level.