张家口市位于河北省西北部,地处晋、冀、蒙交界处,东临首都北京、西连煤都大同、北靠内蒙古草原、南接华北腹地,是沟通中原与北疆、连接中西部资源产区与东部经济带的重要纽带,具有优越的地理位置和区域优势。清水河是张家口市的母亲河,由北向南贯穿张家口市中心城区,是海河流域永定河水 Zhangjiakou City is located in the northwestern part of Hebei Province. It is located at the junction of Jin, Ji and Meng, east of the capital city of Beijing, east of Datong of Datong, north of Inner Mongolia steppe and north of the hinterland of North China. It connects Central Plains with northern Territory and connects central and western resources Producing areas and the eastern part of the economic belt an important link, with superior geographical location and regional advantages. Qingshui River is the mother river of Zhangjiakou City, runs from north to south Zhangjiakou city center, the Yonghe River in the Haihe River Basin