由于地壳上升，早期的河谷被抬升到谷坡上，形成一排台阶状地形。此处岩石地层为茅口组，开阔碳酸盐台地相沉积，岩性以浅灰色、灰白色块状纯灰岩为主。谷幽峰秀，植被繁茂，宛若世外桃源。Crustal movement lifted a river valley to the slope and formed the stair-stepping landform. The rock strata belongs to Maokou Formation, a set of sedimentary rocks of open carbonate platform facies mainly consisting of light grey and grayish white massive limestone. The quiet valley, magnificent peaks and flourishing vegetation compose a land of idyllic beauty.