Wild fox ridge in, birch ridge out. More than 130 kilometers of road, stop and walk, a person played for four hours. This season, Zhangbei grassland is a bit cold, the grass is yellow and the people are sparse. The toilets in the parking area on the road are closed. The first half of the journey is relatively smooth, with grasslands and earthen bags as the main scenery. The second half to the birch ridge is more exciting, are large steep slopes, continuous sharp turns, the scenery is mainly forest areas and terraces.