The surface of the mountain is naturally loess, about two or three sheets thick; underneath it is red clay, five or six feet thick, which is impermeable; underneath the soil are all large and small pebbles of different colors, with water in the gaps between the rocks. Lu Dafang, the governor of the place in the Song Dynasty, dug through red clay and gushed out mineral water, which was then connected to each other by ceramic pipes and imported into the city. It became the earliest water supply project and was praised by historians as "Lv Gong Huimin Spring".
With the spring water nourishing the tiger, the green grass grows lush and gradually becomes a green ocean. When there is no wind, it is quiet, so quiet that you can feel your own heartbeat; when there is wind, it is timid, like the scene of a bride taking off her hijab for the first time.
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