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Hoher Dachstein
:''Dachstein redirects here. For the French commune, see Dachstein, Bas-Rhin.
Hoher Dachstein is a strongly karstic Austrian mountain, and the second highest mountain in the Northern Limestone Alps. It is situated at the border of Upper Austria and Styria in central Austria, and is the highest point in each of those states. Parts of the massif also lie in the state of Salzburg, leading to the mountain being referred to as the ''Drei-Länder-Berg'' ("three-state mountain"). The Dachstein massif covers an area of around 20×30 km with dozens of peaks above 2,500 m, the highest of which are in the southern and south-western areas. Seen from the north, the Dachstein massif is dominated by the glaciers with the rocky summits rising beyond them. By contrast, to the south, the mountain drops almost vertically to the valley floor.
==Geology==
The geology of the Dachstein massif is dominated by the so-called ''Dachstein-Kalk'' ("Dachstein limestone"), dating from Triassic times. In common with other karstic areas, the Dachstein is permeated by a rich cave system, including some of the largest caves in Austria, such as the ''Mammuthhöhle'' and the ''Hirlatzhöhle''. Another significant tourist destination is the Eisriesenhöhle. The Dachstein is famous for its fossils, including megalodonts; the ''Linzer Weg'' leads over many such fossils, which are referred to as ''Kuhtritte'' ("cattle footprints").
Glaciers are uncommon in the Northern Limestone Alps, and those on the Dachstein — the ''Hallstätter Gletscher'' ("Hallstatt glacier"), the ''Großer Gosaugletscher'' ("great Gosau glacier") and the ''Schladminger Gletscher'' ("Schladming glacier") — are the largest, as well as being the northernmost and the easternmost in the whole of the Alps. Several smaller ice-fields also exist, such as the ''Kleine Gosaugletscher'' ("lesser Gosau glacier") and the ''Schneelochgletscher'' ("snow-hole glacier"). The glaciers are retreating rapidly, and may disappear entirely within 80 years. The Hallstatt glacier withdrew by 20 m in the year 2003 alone.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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