Introduction to Butterfly Spring Monument: Walking through the ancient stone square, there is a marble monument about 3 meters high. It is prismatic. On the right side of the front, there are three characters "Dali Butterfly Spring" handwritten by Guo Moruo. For example, Guo Lao's handwriting of a poem about Dali Butterfly Spring is engraved; on the back of the stele, there is a diary of Xu Xiake's visit to Dali Butterfly Spring in Dali.