Wisenberg
| Wisenberg | ||
|---|---|---|
 Wisenberg seen from the Belchenflue |
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| height | 1002 m above sea level M. | |
| location | Cantonal border between Basel-Landschaft / Solothurn , Switzerland | |
| Mountains | law | |
| Dominance | 6.7 km → Belchenflue | |
| Notch height | 311 m ↓ Unterer Hauenstein | |
| Coordinates | 633 464 / 250250 | |
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| rock | Shell limestone | |
The Wisenberg is a mountain in the eastern Jura , in the Swiss cantons of Basel-Landschaft and Solothurn , around 6 km north of the city of Olten . The summit is on the parish of Häfelfingen . With its 1002 m above sea level. M. , the Wisenberg is the easternmost peak of the Jura, which just exceeds the 1000 m mark. The height of the Wisenberg is largely forest-covered, only north of the actual summit there is a larger meadow.
geography
The Wisenberg is bounded in the west by the Homburgertal, in the north by the heights of the Tafeljura and in the east by the valley of the Wisenbach (source stream of the Eibach). To the south, the saddle leads from Wisen ( 710 m above sea level ) to the Jura main ridge in the area of the Untere Hauenstein and the Frohburg . The main ridge of the Jura forms the watershed between the Aare in the south and Ergolz in the north, but at 700 to 800 m it is significantly lower in this area than the Wisenberg to the north. To the west of the wide height of the Wisenberg is the Homberg ( 790 m above sea level ) with the Homburg ruins .
geology
In geological terms, the Wisenberg has a different structure than the main Jura ridge, which consists of layers of rock from the Jura period . The Wisenberg is made up of several stacked stacks of shell limestone , which in turn were pressed together during the Jurassic folding in the late Miocene and Pliocene and pushed over the northern table Jura. These limestone sediments were deposited in a shallow sea during the Triassic around 200 million years ago and are therefore older than the rocks of the Jurassic period.
history
Since the Middle Ages , the then cleared mountain peak has served as a Hochwacht site . In the early 19th century, the mountain, which can be seen from afar, was determined to be the triangulation point for the trigonometric measurement of the Basel region. During the First World War , the Wisenberg was important as an artillery observation point as part of the fortification system Hauenstein . A wooden tower was built for this purpose, and in 1927 a 9 m high stone observation tower was installed in its place. Due to the growth of the forest, which increasingly restricted the view, the tower had to be increased to 15 m in 1953 and to 24.6 m in 1987. The Wisenberg tower was renovated in summer 2017 .
Web links
- Wisenberg (pdf) (691 kB) Item 13 on the adventure trail “wisenbergwärts” available at erlebnisraum-tafeljura.ch
Individual evidence
- ↑ The Wisenbergturm on wisenbergturm.ch accessed on October 9, 2018