Introduction to Saihanba National Nature Reserve: Saihanba National Nature Reserve is located in Weichang Manchu and Mongolian Autonomous County (Weichang Town), Chengde City, Hebei Province, 450 kilometers away from Beijing City. Forest ecosystem type nature reserve. With a total area of ​​20029.8hm², the main protection objects are the forest-grassland ecotone ecosystem, the water sources of Luanhe River and Liaohe River, and rare and endangered animal and plant species such as black storks and golden eagles.