Introduction to Yixiantian: Zangbaomen is also called Yixiantian, Jia Bianshi and the big rock crack in the mountain. It is 33 meters long, 13 meters high and less than 1 meter wide. The stone wall is flat and sloping, with a slope of about 30 degrees. An ancient vine hangs down from the top, allowing for rock climbing. The Treasure Gate of Tiannv Mountain is more precipitous than the Thousand Threads of the Sky in Qianshan Mountain, Phoenix Mountain, and Monkey Stone Forest Park, and it can be called the best of the “Line of Skys” in Liaoning.