In the bunter sandstone mountains a wide variety of hill shapes may be observed, depending on the various rock strata of which they are composed. Typical of the northern and central Palatinate Forest are prominent hill blocks (Bergklötze) and elongated trapezium-shaped ridges, frequently with rocky summit areas (e. g. the Kesselberg, 661.8 m) whilst, in the western part of the range, plateau-like hill formations with clearings predominate. In the southeastern Palatinate Forest, by contrast, the sediments of the Rotliegendes and Zechstein (erosion surfaces), and especially resistant Trifels and Rehberg beds (conical hills) influence the appearance of the countryside.