There is a peak at an altitude of 2543 meters on the southwest side of Changbai Mountain, with exposed rocks and open like ladders. This peak is1.5 kilometers north of Yuzhu Peak, 400 meters from the edge of Tianchi to this peak, and the peak flows out of the ladder river waterfall. The mountain is surrounded by clouds and mist all year round, and the outline of the peak cannot be seen even on a sunny day. Legend has it that this peak leads directly to the Tiangong, which is the ladder connected to the heavens and the earth, so it is called the ladder cloud peak.