At that time, the tomb of Shouwang was known as the Hebei Copper Mine, which showed the large copper reserves. The Beijing-Chengcheng Railway, originally planned to continue southward according to the Section from Chengde to Gubeikou built by the Japanese, was diverted due to a copper mine and coal mine

At that time, the tomb of Shouwang was known as the Hebei Copper Mine, which showed the large copper reserves. The Beijing-Chengde Railway, originally planned to continue south according to the Section from Chengde to Gubeikou built by the Japanese, because there was a copper mine and coal mine, it was diverted to Xinglong into Beijing. Now that the mining resources have been exhausted, it has become the first batch of resource-depleted cities in the country [cover your face]