Introduction to Yuande Gate: It is the mountain gate of Jidu Temple. Together with the main hall and bedroom behind it, it forms an integral Langfang building. Therefore, this place is the Langfang Gate. The climax of worshiping the water god in ancient times started from here. Participants included imperial envoys, county officials, and imperial envoys. Yin, county magistrate and other officials and their entourage and religious figures.