The Karlstal valley, through which run the upper reaches of the Moosalb river near the town of Trippstadt, stands out as a result of its natural, virgin scenery. The Trippstadt village of Johanniskreuz is the centre point of the Palatine Forest and used to be a spa. The 200‑ to 300‑year‑old oak and beech mixed woods, which surround the little hamlet and give it an autochthonous character, are renowned (see Flora). They have long been managed sustainably, following sustainability principles and are especially well known for their valuable stands of furniture-quality oak. It is therefore not surprising that the House of Sustainability was established