The Martinsloch is a breakthrough in the Tschingelhörner Alps chain southeast of Elm in the canton of Glarus (Switzerland) in the form of a triangle about 19 meters wide and about 22 meters high.
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The famous Martin's Hole lies at an intersection between the magic line and a weak area of rock. Through gradual erosion of the rock, Martin's Hole formed.
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In addition to the viper, almost 30,000 animal and plant species find a suitable habitat in the forest. This is almost half of Switzerland's biodiversity.
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