Irrsberg

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Irrsberg
View of the Irrsberg from the Mondseer Bundesstrasse in Straßwalchen between Thalham and Irrsdorf.

View of the Irrsberg from the Mondseer Bundesstrasse in Straßwalchen between Thalham and Irrsdorf.

height 844  m above sea level A.
location Salzburg , Austria
Mountains Mondsee Flysch Mountains , Salzkammergut Mountains
Dominance 4.8 km →  Schoibernberg
Notch height 188 m ↓  on the ridge near Ginzing
Coordinates 47 ° 57 '24 "  N , 13 ° 16' 25"  E Coordinates: 47 ° 57 '24 "  N , 13 ° 16' 25"  E
Irrsberg (State of Salzburg)
Irrsberg
Development Forest path

The Irrsberg is 844  m above sea level. A. high mountain on the northern edge of the Alps near Straßwalchen in the province of Salzburg on the border with Upper Austria .

Location and landscape

The mountain is a gentle knoll, which is the extension of the Kolomansberg to the north into the Alpine foothills . The Alps then end orographically at Straßwalchen to the north, followed by Tannberg (geologically still part of the Alps) and Hausruck-und-Kobernaußerwald-Zug (Alpine foothills). The mountain drains over the Irrsdorfer Bach to the east and Seizbach from the Sattel - Pfongauer Bach to the west completely over Hainbach - Schwemmbach to Mattig and the Inn near Braunau, so hydrographically belongs to the Alpine foothills.

The summit is only around 500 meters from the Upper Austrian state border, which runs over its south-east shoulder.

The larger towns around the mountain are Pfongau near Neumarkt am Wallersee and Steindorf to the west, Straßwalchen to the northwest, Irrsdorf directly at the foot to the northeast and Oberhofen (municipality of Oberhofen am Irrsee ) to the east. A saddle ( 656  m above sea level ) leads to the Kolomansberg ( 1114  m above sea level ), which is called Sommerholz Sommerholzer Sattel after the church to the south , mostly simply Sommerholz as an area.

geology

The mountain belongs to the cement marl series ( Coniacium - Campanium , middle Upper Cretaceous, approx. 90–70 million years old) of the Flysch Zone , to the south lies the Altlengbach Formation ( Maastrichtian - Thanetium , Wende Cretaceous / Paleocene, 70–50 million years old). This tectonic discordance continues in the Kogler Berg and Schoibernberg on the other side of the Irrsee.

The Irrsberg marks the point where the lobe of the Salzach glacier , which has shaped the Salzburg lake area ("Wallerseegletscher"), and that of the Dachstein glacier , which has furrowed the Mondseeland (locally called "Mondseegletscher" or "Irrseegletscher"), met . In the Mindel (around 450,000 years ago) and Riss ice ages (around 200,000 years ago), Irrsberg and Koglerberg – Schoibernberg were typical nunataks , rock islands protruding from the ice mass. Throughout the eastern foot along at about 500- 650  m above sea level. A. run the younger Riss marginal moraines of the Irrseegletscher, in the west there are partly ground and partly marginal moraines. A remnant of the higher Mindel gravel (around  700  m ) has been preserved on the Sommerholzer Sattel.

The northeast flank at Taigen is an old sliding mass .

Development

The mountain is easy to climb from all sides, a forest path leads from Steindorf to the summit. At the summit there is a concrete area of ​​the armed forces on which a radar system is temporarily stationed.

Web links

Individual evidence

  1. ^ Rainer Braunstingl: Report 1984 on geological recordings in the flysch on sheet 65 Mondsee. In: Yearbook of the Federal Geological Institute. 128 / issue 2, p. 259 ( pdf , geologie.ac.at).
  2. ^ Eduard Stummer: The interglacial lakes of Salzburg. In: Negotiations of the Federal Geological Institute. 1936, p. 105 (full article p. 101–107, PDF on ZOBODAT , p. 5 there).
  3. ^ Walter del Negro : Geology of the State of Salzburg. Publication series of the state press office, special publications 45, Salzburg 1983, p. 26.
  4. Julius Fink: Contributions to Plaistocene Research in Austria: Excursions between Salzach and March. Federal Geological Institute, 1955, p. 20;
    Erich Seefeldner: Salzburg and its landscapes. A geographic study of the country. Verlag Das Bergland-Buch, 1961, p. 490;
    (Unknown article) In: Mitteilungen der Geographische Gesellschaft in München. Volumes 48–50, Geographical Society in Munich, 1963, p. 490 (on the reconstruction of the summit corridor ).