The Saihanba National Forest, located in the Bashang area of Chengde City, Hebei Province, is part of the Mulan Paddock, one of the famous royal hunting grounds in the Qing Dynasty. Autumn dam, the meadow is golden, the layers of forest are dyed, and the colors are colorful. Every grass, every tree, every lake, every mountain here is a beautiful picture! The dam is beautiful in all seasons, and each has its own characteristics. Summer grass, winter snow, and autumn dam, is to shoot trees, because the autumn trees on the dam are colorful and different in shape. The largest number is the birch tree, which is known as the most beautiful trunk. The layers of birch groves are magnificent and close to the wind.