Photo taken on April 30, 2016 shows the Xinjiang-Tibet Highway passing through mountains in northwest China's Xinjiang Uygur Autonomous Region. As one of the world's highest motorable roads, Xinjiang-Tibet Highway, or China National Highway 219, connects Xinjiang and southwest China's Tibet Autonomous Region with an average altitude of over 4,500 meters. Originally made of graval in 1950s, the 2,340-kilometer highway was fully paved with asphalt in 2013. (Xinhua)
新藏公路又称国道219线，北起新疆叶城，南抵西藏拉孜，全长2340余公里，平均海拔4500米以上，年平均气温不到5摄氏度，氧气含量只有内陆地区的40%。图为阿卡孜达坂。
2011年5月3日拍摄的武警交通部队官兵在班公湖边抢修道路。随着公路的通行能力和安全系数逐年提高，阿里至叶城从15天缩短到了1天。
(Xinhua)