Introduction to the Mountain Top Crater: This is the world-famous Mountain Top Crater. This huge funnel-shaped crater is currently the most complete preserved one in the world, with a diameter of 350 meters and a depth of 145 meters. The rim of this crater is high on the north and south sides and low on the east and west sides. Dangerous rocks stand in the crater, and the rim and outer slope are covered with pumice, slag, and volcanic bombs.