Li-shan colluvial deposits are composed by the broken slate and its weathered soils.The surface of the ground exhibits the concave-convex landforms which are formed by weathering and erosion .

• 梨山崩积地层主要由破碎板岩及其风化形成的土壤所组成，后经侵蚀作用造成凹凸之缓起伏地形，存在著再滑动之地形条件与地质条件。