密云,仁山智水,厚德远识,是京郊著名的旅游生态县,自古就有“燕国天府”的美誉。她地处北京东北部,燕山南麓,是北京通往东北及内蒙古的重要门户,故有“京师锁钥”之称;其北部、东部分别与河北省滦平县、承德县、兴隆县接壤;南与北京市平谷区、 Miyun, Ren Shan Zhicui, Houde well-known, is the famous tourist eco-county in the suburbs of Beijing, since ancient times, “Yan State Tianfu” in the world. She is located in the northeast of Beijing and the south of Yanshan. She is an important gateway to Beijing and northeast of Inner Mongolia. Therefore, she is known as “Lock Key of the Capital”; the north and the east are bordered by Luanping County, Chengde County and Xinglong County of Hebei Province respectively; South and Pinggu District of Beijing,