About 3 kilometers south of Xinjin County, Laojun Mountain, also known as Tianshe Mountain and Dengjing Mountain, is a holy place of Taoism in Western Sichuan. The fourth rule in Zhang Daoling's "Wuduomidao" of the Han Dynasty is "Dense Japonica Zhi". It is also the place where Lao Tzu's reclusion is legendary. Shanzhong is famous for Taoist architecture and grand Laojun Temple Fair. Most of the buildings that visitors see here today are later rebuilt. The main buildings are Tianci Palace, Lingzu Tower, Mixed Yuan Palace, Bagua Pavilion, Sanqing Palace and Qizhen Palace. The palace and terraces are all built on the hills. The green surroundings make people feel a quiet wind. The 15th day of February in the lunar calendar is the birthday of Lao Tzu (Lao Shang Lao Jun). It is a major Taoist festival. The "Lao Jun Temple Fair" of Taoism in Xinjin and Lao Jun Mountain is the most grand and grand Lao Jun Temple Fair in Sichuan. On this day, the whole mountain is full of visitors who come to pray for good luck, everywhere is full of people.