Palatine Watershed
In the southern Palatine Forest, the German part of the Wasgau, the Palatine Watershed begins on the French border in the area of the Erlenkopf hill (473 m above NHN), where it is a continuation of the watershed in the northern Vosges. Always generally running from southwest to northeast it initially heads eastwards past Eppenbrunn and Pirmasens over the Großer Schiffelskopf () and reaches the region of Gräfenstein Land. From there it runs up the Hortenkopf () in the central Frankenweide. Several kilometres it passes through the hamlet of Johanniskreuz (), one of the highest settlements in the Palatine Forest. The watershed then reaches the area west of Waldleiningen in the Lower Frankenweide.
Palatinate Forest
After the Frankish conquests in the Early Middle Ages (7th to 10th century) took them to the edges of today's Palatinate Forest, there was increasing population pressure in the Middle Ages (10th to 13th century), especially through the initiatives of the nobility and the church, e.g. through the establishment of monasteries such as the Cistercian abbeys of Otterberg (1144) and Eußerthal (1148), the colonization and development of the mountains. Areas that could be used for agriculture were cleared and settled permanently. This development reached its peak in the region during the era of the Salian (10th-12th centuries) and Hohenstaufen (12th and 13th century) emperors, with the construction of Trifels Castle and other castles in the surrounding area that, for a time, made it the centre of power of the empire.