Introduction to the Yansong Trail: The Yansong, namely Masson pine and Five-needle pine, is an evergreen shrub growing in the rock crevices of the mountains in the Daxinganling Mountains. The branches are winding and twisting, about 10 meters long, with five-needle leaves in a bunch, light yellow and purple-red spherical stamens, showing its monoecious characteristics. People often plant pine trees as ornamental plants in courtyards or pots. Climb the mountain along the path of the weir pine forest. The slender weir pine branches and leaves on the mountain are green and the fragrance of pine is astonishing. Whenever the fruits are ripe, pick a basket of pine seeds and fry or stir-fry them. They will be crispy and delicious. The Yansong Forest is located 12 kilometers away from Mordaoga Forest Park, covering an area of more than 1,900 hectares. Because of its rare large area and high density, the Yansong Forest was called "Xing'an Wonders" by ecological experts on scientific research.