Introduction to Yunmeng Xianding: Yunmeng Xianding is located at the highest peak of Tianmen, with an altitude of 1518.6 meters. It is the highest geographical coordinate in Zhangjiajie and is a natural observation tower. Tianmen Mountain was originally named Yunmeng Mountain. According to legend, it is a sacred mountain that separates the immortal and mortal worlds. It was left behind because "Qin Shihuang drove the mountains to fill the sea". The immortal world is just one step away from the ordinary world and the closest to the immortal world. Hence the name "Yunmeng Xianding" .