Introduction to Fan Gongjing: is a well on the bank of Yanhe River about 100 meters high from the beacon tower. The well was dug and built by Fan Zhongyan when he was stationed in Yanzhou to provide water for the defenders in Jialing Mountain. Later generations called it Fan Gong Well. The wellhead is oval in shape, with a long axis of 1.4 meters, a short axis of 0.75 meters, and a depth of 24 meters. It is surrounded by stones. Although it has lasted for nearly a thousand years, the well shaft is intact.