Aerial views along Xi'an-Chengdu high-speed railway

Photo taken on Sept. 21, 2017 shows Yangxian West Station of Xi'an-Chengdu high-speed railway in Hanzhong, northwest China's Shaanxi Province. The Xi'an-Chengdu line is China's first rail route to run through the Qinling Mountains, which are the natural boundary between north and south China. It will begin operation on Dec. 6. (Xinhua/Tang Zhenjiang)