The wind and weather have left their mark on the red sandstone rock massif, consisting of the Trippstadt and Karlstal layers, over the course of time and created bizarre rock formations. You can make out four towers, which stand close together, and the actual main rock. The towers bear traces of a former fortress, probably built by the Counts of Zweibrücken-Bitche after 1279. In 1605, all traces of the castle were erased. In 1991, the rock outcrop was declared a protected monument.
(Location: Near Eppenbrunn, starting point at Spießweiher car park, 1.5 km long and 30 m high)
Access trail: Old Castle Premium Trail ("Premiumweg Altschloss-Pfad")