Longhu Mountain is located 20 kilometers southwest of Yingtan City, Jiangxi Province. In the middle of the Eastern Han Dynasty, Zhang Daoling, the founder of Zhengyi School, was an alchemist here. It is said that "when the Dragon and Tiger were born in Dan, the mountain was named after it". Tianmen Mountain is the highest, with an altitude of 1300m. Longhu Mountain is the eighth world natural heritage in China [1], a world geological park [2], a national natural and cultural heritage site [3], a national AAAAA-level tourist attraction [4] and a national key cultural relic protection unit.

Longhu Mountain is a typical Danxia landform in China and the birthplace of Taoism in China. It joined the World Geopark Network in 2007. The Danxia landform of Longhu Mountain is two Danxia mountain bodies composed of late Cretaceous continental piedmont pluvial-alluvial fan massive red glutenite developed in the south of the middle section of Xinjiang Basin in southeastern China. [5]

According to Taoist classics, Zhang Sheng, the fourth generation descendant of Zhang Ling, settled in Longhu Mountain in the Three Kingdoms or the Western Jin Dynasty. Since then, the descendants of Zhang Tianshi have been living in Longhu Mountain, and/kloc-0 has been passed down for 63 generations for more than 900 years. [6]