Hebei, located in North China, is the only province in China that has both plateaus, plains, mountains, basins, deserts, hills, lakes and seashores. Yanshan Mountain straddles the northern part of Hebei, the boundary between the plateau and the plain, the throat from northeast to north China. Along a route of less than 5 kilometers, you can travel through a century and see clearly the heart of the indomitable city of Tangshan.