Introduction to Sanzhiguo Scenic Area: Located on the Taihang ridge at the junction of Hebei and Shanxi provinces in the west of the park, it was one of the important passes of the Great Wall in the Ming Dynasty. In ancient times, it was an important trade route between Hebei and Shanxi provinces. Nowadays, Xing (Taiwan) and (Shun) highways pass through it, and the city gate is basically well preserved. It is a cultural relic protection unit at the provincial level in Hebei.