The stratum in this area changes from horizontal to inclined due to the movement of a large fracture. The fracture is also called the Pangu Temple Fault, which is over 80 km long. It starts from the front mountain at Pangu Temple, passes through Hekou village of Jiyuan City, and then continues to the front of Shennongshan. Archean metamorphic rock, Paleozoic Cambrian, and Ordovician limestone are exposed on the north side of the fault, while Carboniferous Permian sand shale and Cenozoic loose debris are exposed on the south side. The fault surface trends to the south, with an inclination angle of about 70 degrees. The relative height difference between the cliffs and the fault triangular surface at the front of Shennongshan is about 650 m. This height variation also marks the boundary between two geomorphic units, the Taihang Mountain and the North China Plain.