The altitude along the way from Dunhuang to Golmud

Does the subject want to ask "how many meters above sea level from Dunhuang to Golmud"? 3,800 meters. According to Google Maps, Dunhuang is located in Gansu Province, China, and Golmud is located in Qinghai Province, China. The distance between the two places is 56 1 km, and it takes 6 hours by car, passing through Liu Ge Expressway, with an altitude of 3,800 meters along the way.