Introduction to Leihuling: Leihuling is an extinct volcano with an altitude of only 187 meters. The top of the mountain is a crater with a diameter of about 300 meters and a depth of about 50 or 60 meters at the center. Standing on the south side of the top of the mountain, you can clearly see a wide gap on the northwest side of the top of the mountain, making the entire mountain shape look like a dustpan used by farmers.