Changshanyu
Changshanyu is a town located in Luanping County, Chengde, Hebei, China. According to the 2010 census, Changshanyu had a population of 20,024, including 10,339 males and 9,685 females. The population was distributed as follows: 3,684 people aged under 14, 14,342 people aged between 15 and 64, and 1,998 people aged over 65.