The Bohlinger Schlucht lies on the northern slope of the Schienerberg, above the Bohlingen district of Singen. Small streams have carved deep into the ground here, creating an impressive ravine. The steep slopes offer a unique insight into the region’s geological history: the rocks and sediments of the Tertiary Upper Freshwater Molasse, from which large parts of the Schienerberg are composed, are particularly evident. Yellowish mica sands with clearly visible layering alternate with grey marl layers. Plant and leaf imprints have even been identified within them. Above these lie younger glacial gravels, some of which have cemented together to form solid Nagelfluh rock. The Bohlinger Schlucht is therefore not only a protected natural monument, but also a vivid window into the geological past of the Hegau region.
A footpath generally provides access to the area; however, due to the fragile slopes, which are prone to landslides, it is essential to observe any current path closures.
