Tian Montain is a large mountains in central Asian, cross over the central section of Xinjiang in China, the western end reach to Kazakhstan. 2500 kilometers in length, 250 - 300 kilometers in breadth, the average altitude is about 5000 meters, highest peak is 7435.3 meters above sea level. Hantengri Peak is 6995 meters above sea level, Bogda Mountain is 5445 meters.