The Leuengraben is a deeply cut valley on the edge of the Dinkelberg with special climatic conditions, which is why it has been designated a nature reserve on the territory of the municipalities of Grenzach-Wyhlen and Rheinfelden (Baden) in the district of Lörrach. It is characterised by diverse biotopes and provides a habitat for a variety of rare plant and animal species. In the central part of the gorge there are mixed beech forests with a species-rich shrub and herb layer. In addition, there is an occurrence of a maple-ash gorge forest here with many plants that have become rare, such as the deer's tongue. During the flowering period in April and May, blue asters, woodruff or wild garlic can be found in large areas. Especially the latter dominates the forest then with its characteristic wild garlic flower scent. The pimpernut is found at the entrance to the valley.

As evidence of the former gypsum mining, various small quarries with rock terraces and boulder heaps can be found throughout the area. The high structural diversity also results in a species-rich fauna. Particularly noteworthy are the mountain warbler and the red and black kites.

The Leuengraben is a sensitive nature reserve with areas that have hardly been disturbed by humans. Visitors are asked to respect this special character of the site. Therefore, visits with large groups and school classes should also be avoided.


The tour of the Leuengraben begins at the "Markhof", one kilometre east of the entrance to Grenzach-Wyhlen village. The trail follows the main path, past the nature reserve sign and later on along the mostly dry stream. Following this stream, rock faces can be seen on the left and right. After about 45 minutes, the path leaves the stream and leads uphill to a main path, which you follow in a right-hand direction. After another 30 minutes, the forest opens up and allows a view of the Swiss Jura. If you continue along the main path, you will come back to the starting point at the "Markthof" via a larger loop. This walk is also suitable for small children, but not wheelchair accessible.


There are several picnic and barbecue areas in the forest. In addition, the surrounding villages of Grenzach-Wyhlen and Herten offer restaurants and shopping facilities.

Other greenbelt sites in the vicinity

Gravel pit Wyhlen

Nature reserve Altrhein/Grenzach-Wyhlen

Estuary of Ergolz

Further information

Here you will find further information from our partner on the topic 'Gorge forests' and the Dinkelberg.


  • Barbecue / fireplace, Excursion with animals, Excursion with children, Hike (good footwear), Viewpoint, Walk

  • Bicycle, Car, Public transport

  • Barbecue / fireplace, Food must be brought along, Picnic area

  • Birds, Cultural landscape / meadows, Forest, Insects, Reptiles, Specific fauna

  • Tour

  • Families, Groups (< 10 persons), Hikers, Walkers


You can reach the "Wyhlen" railway station by train, from where the Leuengraben is easily accessible. Car drivers can park their vehicles at the "Hertenberg" car park, for example.

Calculate route


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