The valleys are the most typical morphological expression of the erosive action made by the watercourses.
The valleys are the most typical morphological expression of the erosive action made by the watercourses.
In fact, the valley engravings are almost always complex systems, in which the erosive action of the river, limited on the riverbed and banks , interacts with the degradation of the slopes (landslides, erosion, frost weathering) and controls and determines the morphological evolution of the valley hipsi. Among the river forms, characterizing this landscape, there are gorges, waterfalls and pits, which are all the results of erosion.