Zhu Zhangzi Mashan Cave Site

　　   Zhu Zhangzi Mashan Cave Site is situated on the northern hill of Zhu Zhangzi Village, Bianzhangzi Township, approximately 10 kilometers northwest of Chaoyang City. The Mashan Cave is a limestone karst cave, with its entrance about 50 meters above the ground. The cave is oval-shaped, covering an area of around 500 square meters. Several massive collapsed rocks divide the interior into sections. The distance from the bottom to the top of the cave is about 6 meters. The eastern and southern walls of the cave feature oddly shaped stalactites, and “carbon black” traces can be seen in multiple areas. The cave floor is scattered with a large number of mammalian fossils. The cave remains quite cool, with a significant temperature difference between the inside and outside.