Mainly by the Juma River, Yasumizu, Caohe, Longquan River, Tanghe, elimination River alluvial materials piled up after a pass made, hydraulic cutting, gully development.

• 主要由拒马河、易水、漕河、龙泉河、唐河、消河出山口后洪积物堆积而成，水力切割，冲沟发育。