Chengde, formerly known as Jehol and Rehe, is a prefecture-level city in Hebei province, situated about 225 kilometres northeast of Beijing. It …Chengde, formerly known as Jehol and Rehe, is a prefecture-level city in Hebei province, situated about 225 kilometres northeast of Beijing. It is best known as the site of the Mountain Resort, a vast imperial garden and palace formerly used by the Qing emperors as summer residence. The permanent resident population is approximately 3,473,200 in 2017.