Jörentobel

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Big blocks (Blithstein) in the forest

The Jörentobel is a ravine above Fällanden , Canton Zurich , in Switzerland , which the Federal Inventory of Landscapes and Natural Monuments counts. It is a large group of erratic blocks in and around the bed of the Jörenbach . The area is also known as the Lower Fällandertobel and is one of the geotopes of Switzerland.

In the moraine landscape near the Greifensee , the Jörenbach coming from Binz has cut into the subsoil made of seaweed material and molasse rock . In the process, the brook cleared an erratic block swarm consisting of hundreds of different large stone blocks, but was unable to move them. The boulders are mostly from Verrucano and were before about 20,000 years ago from the Rhine-Linth glacier from the Glarner Sernftal the Plateau transported.

The ravine with its beech forest is a little touched habitat of importance for the fauna on the pan handle , namely the yellow-bellied toad .

The highest point of the 4.61 hectare protected area is around 530  m below Benglen. At approx. 520  m there are some very large blocks to the north above the stream, including the Blitzstein , which is divided in two halves . At 500  m there is a bridge over the stream, another around 120 meters further up the stream. The protected area stretches along the stream down to the historic village center of Fällanden beyond the old mill (approx. 460  m ). In addition to the ravine of the Jörenbach, theGrundhiltibach , which joins from the south, parts of the Bengler Forest and the Müliweiher at the northern exit of the gorge to protected area.

Blitzstein - photo from 1909

The ravine was bequeathed to the community by Federal Councilor Albert Meyer (1870–1953), son of a farmer and Fällander mayor, at the beginning of the 20th century on the condition that the landscape be protected. Accordingly, it was also placed under protection in 1912. Nevertheless - as in the past - Verrucanoblocks were repeatedly removed for building purposes. As early as 1909, people from the city of Zurich had set up a path with benches along the ravine. In 1951 the municipality put the Blitzstein under protection as a natural monument . It was included in the federal inventory in 1977.

  • Walk by the old mill Fällanden on a photo from 1936

  • Small erratic blocks below the bridge

  • Erratic blocks in the bed of the Jörenbach

Web links

Commons : Jörentobel  - Collection of images, videos and audio files

Individual evidence

  1. ↑ SR 451.11 Ordinance of 29 March 2017 on the Federal Inventory of Landscapes and Natural Monuments (VBLN). In: admin.ch. Retrieved March 18, 2020 .
  2. ↑ Group of Erratics in the Lower Fällandertobel (Fällanden, ZH). (PDF) In: data.geo.admin.ch. Geosciences, sc-nat, November 8, 2012, accessed March 18, 2020 .
  3. ↑ a b c BLN 1408 Jörentobel. (PDF) In: data.geo.admin.ch. Federal Office for the Environment, 2017, accessed on March 18, 2020 .
  4. ↑ Stefan Hotz: How a landslide from the Alps came to Fällanden - and what a former NZZ editor-in-chief has to do with it . In: Neue Zürcher Zeitung . July 31, 2019 ( nzz.ch [accessed March 18, 2020]).
  5. ↑ Blitzstein. In: Fällanden Online. Retrieved March 18, 2020 .

Coordinates: 47 ° 22 '3.3 "  N , 8 ° 38' 11.2"  E ; CH1903:  six hundred ninety thousand four hundred seventy-four  /  two hundred forty-six thousand nine hundred ninety-five