Boulder east of Lindenberg

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The "boulder east of Lindenberg": Remains of what was once the largest boulder in the northern foothills of the Alps (photo from 2008)

The boulder east of Lindenberg (also: Findling near Weiler ) is a boulder in the municipality of the city of Lindenberg im Allgäu in the Swabian district of Lindau (Lake Constance) . Originally three to four thousand cubic meters in size, it is the largest boulder found in the northern foothills of the Alps .

description

The boulder east of Lindenberg consists of light gray, norischem limestone , that of Calcitäderchen is crossed. He probably comes from the Hauptdolomit -type region of the mountain range Three Sisters in Vaduz in Liechtenstein , where he in a landslide along with other material on the Rhine glacier reached and the Rotach- glacier in the Würm glaciation before about 20,000 years, more than 60km was transported far to its current location.

It is an erratic block about 20 m long, 8 m wide and 4 m high , which consists of two sections.

Since it was the only limestone deposit in the wide area, the erratic boulder was used as a quarry in the past, unaware of its geoscientific significance, until around 1900 . The material was used in a variety of ways, for example as a building block for the railway bridge near Röthenbach (Allgäu) , for burning lime and for making sculptures or gravestones . Holes meters deep in the rock are evidence of centuries of mining activity.

Location and access

The location of the boulder in the natural area of ​​the Westallgäu hill country is at an altitude of 662 m above sea level. NHN a few kilometers east of the city of Lindenberg, about 600 m south-east of the hamlet of Manzen in an area characterized by meadows and forests, somewhat hidden in a small wood. It can only be reached on foot from the B 308. Most of the route runs on a paved dirt road from Manzen , initially in a south-easterly direction, then you get to the rest of the boulder via a small meadow.

Geotope

The boulder was recorded in the geotope register of the Bavarian State Office for the Environment as a geotope with the designation "Findling E von Lindenberg" under the no. 776R002.

meaning

From a geoscientific perspective, the erratic boulder is assigned to the highest category “particularly valuable” and is considered a special scientific reference object. Since there are fewer than five comparable geotopes in the region in question, this boulder is also classified as "rare".

Protection status

The erratic boulder has been under protection as a natural monument since 1991 by the Lindau District Office (Bodensee) ordinance on the "Erratic Block in Ellhofer Moos" natural monument .

literature

  • Erich Wasmund: A giant Rhaetian boulder in the Allgäu Rhine glacier area. 1929.
  • Ludwig Armbruster: Lindau Oberschwäbisch-Westallgäuer Geology and Landscape History , Lindau 1949
  • Herbert Scholz: Construction and development of the Allgäu landscape . 3rd edition, Schweitzerbart 2016, ISBN 978-3-510-65333-1 .
  • Benz, Wolfram: Insights into the landscape history of the Western Allgäu. Edition Allgäu, Immenstadt-Werdenstein 2013, ISBN 978-3-931951-85-6 .

See also

Individual evidence

  1. ^ Herbert Scholz: Building and Becoming the Allgäu Landscape . 3. Edition. Schweizerbart, Stuttgart 2016, ISBN 978-3-510-65333-1 , p. 215 .
  2. ↑ a b c d e Geotop cadastre sheet of the Bavarian State Office for the Environment : Findling E von Lindenberg , lfu.bayern.de, accessed on August 12, 2016, .pdf, 2 pages.
  3. ↑ Ordinance of the Lindau District Office (Bodensee) on the natural monument "Erratic Block in Ellhofer Moos", Lindenberg district, dated June 24, 1991, Official Journal No. 7 for the Lindau district (Bodensee) dated June 28, 1991

Coordinates: 47 ° 36 ′ 4.9 ″  N , 9 ° 55 ′ 21 ″  E