Geopark Introduction: Maolangou is a geological and landform complex represented by the Indosinian granite structural peak forest landform, Quaternary periglacial landform, and neotectonic collapse landform. It is currently the only one discovered in the Xiaoxing'an Mountains. It is the granite canyon geological relic with the most complete types, the most typical development and the richest shapes in the area. It is also a typical representative of the geological relics of structural canyons formed by granite in the Indosinian period.