Is Yanshan located in Beijing or Hebei?

Yesanpo belongs to the boundary of Hebei and borders Beijing. Within the boundaries of Beijing are Shidu and Baihuashan.
Yesanpo is located in Hebei Province. Yesanpo is located in Laishui County, Hebei Province, at the intersection of the Taihang Mountains and the Yanshan Mountains.
Yesanpo belongs to the boundary of Hebei and borders Beijing. Within the boundaries of Beijing are Shidu and Baihuashan.
Yesanpo is located in Hebei Province. Yesanpo is located in Laishui County, Hebei Province, at the intersection of the Taihang Mountains and the Yanshan Mountains.