Introduction to Malun Grassland: Malun Grassland, with an altitude of 2,721 meters and an area of ​​more than 6,000 acres, was formed during the Quaternary Ice Age of the Cenozoic 750,000 years ago. It is one of the largest subalpine meadows in North China. Because of its fertile pasture, it became a base for emperors to raise war horses.