Chéngdé (Chinese: 承德), previously known as Jehol or Rèhé (Chinese: 热河), is a prefecture-level city in Hebei province, People's Republic of China, situated 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 urban center had a population of approximately 450,000 as of 2009.