One of the most important water conservancy projects along the Beijing-Hangzhou Grand Canal is located in the southeast of the mountain. It is the highest terrain along the Grand Canal, which is called the "ridge" and is the biggest obstacle to the circulation of the canal water. The completion of the water-sharing Dragon King Temple, which is also the Nanwang Water Conservancy Hub, finally ensured the smoothness of the Grand Canal for more than 500 years. The complexity and superb engineering technology made future generations admire. The site was well protected and displayed, and a museum was also built.