Introduction to Qingcheng Back Mountain: Qingcheng Back Mountain is located behind the Qingcheng Front Mountain, in Tai'an Township, 70 kilometers away from Chengdu, with a total area of about 100 square kilometers. Although the incense and fragrance of the palaces and temples in the back mountains of Qingcheng are not as prosperous as those in the front mountains, they are even more quiet and clean. According to the saying of "a mountain's tranquility is equally divided", the natural scenery is charming. Walking along the mountain road, there are blooming mountain flowers, endless waterfalls and flowing springs; cliffs and rocks, a line of skylight and cloud shadows; sometimes the plank road is winding and winding, with no beginning or end; sometimes the village is surrounded by mountains and green grass.