Fengcong(i.e.peak cluster) and Fenglin(i.e.peak forest)

Fengcong is composed of lofty cone-shaped peaks on the top and connected foundation bed at the bottom. The relative height is 300-600m and the slope gradient of peaks is 30°-60°.

Fenglin is the many t lofty limestone peaks. The relative height is 100-200m, the diameter is smaller than the height; the slope gradient is steep with most of them above 60°. Fenglin often appear on the flat ground separately or in groups, just like forest and hence the name.

They form the assembly units of two landforms: Fengcong-depression and Fenglin -valley.