Saihanba National Forest Park is located in the northernmost part of Weichang County, Chengde City, Hebei Province. It is adjacent to Keshiketeng Banner and Duolun County of Inner Mongolia Autonomous Region in the north and west, and Yudaokou Pasture and Hongsongwa Nature Reserve in the south and east. It is 86 kilometers away from Weichang County, 240 kilometers away from Chengde City, and 460 kilometers away from Beijing. It is part of the Mulan Hunting Ground, a royal hunting ground in the Qing Dynasty, with a total area of 1.42 million mu and an altitude of 1,100-1,940 meters. It has a cold temperate monsoon climate, cool in summer, and the highest temperature generally does not exceed 25℃. There are many kinds of animals and plants here, and it is known as "the source of water, the hometown of clouds, the world of flowers, the ocean of forests, and the paradise of rare birds and animals". It is a national first-class tourist resource with unique "ecology, royal, and folk customs". Saihanba National Forest Park is known as the "Green Pearl of China" and the "Emerald of North China". Saihanba is a mixed language of Mongolian and Chinese. In ancient times, it was translated as "Saihan Daba Han Seqin", which means "beautiful high mountains". In history, Saihanba was a natural garden with abundant water and grass, dense forests, and abundant animals. It was called "Thousand Miles of Pine Forest" during the Liao and Jin Dynasties and was used as a hunting ground for the emperor. In 1681 AD, after quelling the "Rebellion of the Three Feudatories", Emperor Kangxi of the Qing Dynasty toured the frontier and took a fancy to this Mongolian nomadic land in the south of the desert, which "guarded the capital in the south, controlled the northern desert in the north, had steep mountains and rivers, and was of moderate distance". Emperor Kangxi borrowed the ancient rituals of hunting in the four seasons of "spring search, summer seedlings, autumn hunting, and winter hunting" to strengthen the fighting power of the Eight Banners of the Manchus, implement a conciliatory policy to pacify Mongolia, curb the invasion of the northern border by Tsarist Russia, maintain the unity of the multi-ethnic country and other political factors to consolidate the state power. In the name of "offering pastures, opening sacred gardens, and annual autumn hunting" by the Kalaqin, Aohan, and Wengniute tribes, he set up the "Mulan Hunting Ground" and established the "Mulan Autumn Hunting" as the ancestral system. Historians call it "Yiwu Suifan". The Manchu name of "Mulan Hunting Ground" is "Mulan Huihan", which is translated into Chinese as "a place for hunting deer". "Mulan", which means "deer scouting" in Manchu, is a way for the Qing emperors to hunt. According to historical records, Mulan Paddock was a royal hunting ground outside the Great Wall. During the 139 years from the 20th year of Emperor Kangxi to the 25th year of Emperor Jiaqing, Emperors Kangxi, Qianlong and Jiaqing held Mulan Autumn Hunts 105 times, leaving behind historical sites and many beautiful and moving legends in Saihanba, such as the Liangbingtai, Jiangjun Paozi, Twelve Joint Camps, Saibei Foshi Temple, Qianlong's Tiger-killing Cave, Cuihua Palace, and Kouken Tomb. However, in the late Qing Dynasty, the country was declining, and with the gradual opening up of Mulan Paddock, forest resources were severely damaged. The entire paddock was desolate, with sandstorms everywhere and no wild animals. In 1962, the former Ministry of Forestry established the Saihanba Mechanical Forest Farm on the basis of the Saihanba Mechanical Forest Farm, Dahuanqi Forest Farm and Yinhe Forest Farm (it was managed by Hebei Province in 1968 and is now a unit directly under the Provincial Forestry Bureau). Since then, Saihanba has been named. So far, with the strong support and care of leaders at all levels, Saihanba has spent more than 40 years and the youth and sweat of two generations to create a vast forest. With its profound historical and cultural heritage and rich Manchu-Mongolian ethnic customs, it has become a national first-class tourism resource, which is a great feat of human transformation of nature and a miracle on earth. In May 1993, with the approval of the former Ministry of Forestry, Saihanba National Forest Park was established on the basis of Saihanba Mechanical Forest Farm in Hebei Province, with a total area of 1.42 million mu, including 1.1 million mu of forest landscape and 200,000 mu of grassland landscape. The forest coverage rate is 78%. It is the largest national forest park in North China with both forest and grassland landscape. The park is rich in scenic resources and unique in landscape. It attracts many tourists with its four-season tourism opening features, including spring outing and tree planting tours, midsummer summer vacation and leisure tours, golden autumn, golden color picking tours, and midwinter skiing and hunting tours.