Introduction to Xiaogu Mountain: It is more than 10 meters high, more than 30 meters long, and 10 meters wide. According to legend, the Jade Emperor ordered Erlang to lead the heavenly soldiers to fill the mountain and fill the sea. Passing by this place, he felt uncomfortable under his feet, so he took off his shoes and poured stones. The stones fell. A "little solitary mountain" is formed in the river.