Datong–Qinhuangdao railway or Daqin railway (simplified Chinese: 大秦铁路; traditional Chinese: 大秦鐵路; pinyin: Dàqín tiělù), also known as the Daqin line (simplified Chinese: 大秦线; traditional Chinese: 大秦線; pinyin: Dàqín xiàn), is a 653 km coal-transport railway in north China. Its name is derived from its two terminal cities, Datong, a coal mining center in Shanxi province, and Qinhuangdao in Hebei province, on the Bohai Sea. The electrified double track line serves as a major conduit for moving coal produced in Shanxi, Shaanxi, and Inner Mongolia to Qinhuangdao, China's largest coal-exporting seaport, from there coal is shipped to south China and other countries in Asia.