echternach vue ort mpsl j. mathias

Meander core "Thoull"

Until the last ice age about 25,000 years ago, the Sûre flowed in a large arc, a meander, around the hill called Thoull.

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Until the last ice age about 25,000 years ago, the Sûre flowed in a large arc, a meander, around the hill called Thoull. The Sûre dug deeper and deeper into the rock, and at some point there was a breakthrough of the meander at its narrowest point, the neck. As a result, the Sûre shortened its course, the former river loop silted up. Dolomite forms the underground in the west of the Thoull, the valley is particularly narrow here. In the east, the faster-weathering marl prevails, a mixture of clay minerals and lime or dolomite. The valley is much wider here. On the Thoull river terraces are formed, which are recognizable by the round gravel. That shows that the Sûre was once on a much higher level and has cut in the rock in the underground.
From Roman times until the 20th century, the mineral spring "Kefferbur" has been used in the southwest of Thoull. Its sulphurous water is said to promote good health. The different geological layers were also used to extract building blocks.
The Thoull can be hiked via the 6.3 km long local circular route E5, which also runs along the lake of Echternach. Parking is possible by the lake.


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