The Mysterious Valley is located in the Tianzhu Mountain Scenic Area of Qianshan, Anhui Province. It is a very representative scenic spot in Tianzhu Mountain. The Mysterious Valley attracts many tourists with its unique geological landscape and mysterious natural wonders. The valley is intertwined with huge rocks and densely covered with caves, forming a complex underground maze. The stream in the valley is clear, the cliffs on both sides are steep, and the scenery is magnificent.