Introduction to the nature reserve: The Yitong Volcanic Group National Nature Reserve was established in 1983. It borders Changchun City to the north, Liaoyuan City to the south, Gongzhuling City to the west, and Shuangyang City and Panshi City to the east. It is the main protected object. It is a unique volcanic origin mechanism of basic basalt "extrusion" and a unique volcanic landscape.