Hölloch Cave

Hölloch Cave

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The Hölloch Cave is the fourth longest caves in the world. It is situated in Switzerland , in the valley of the river Moutha. The Hölloch Cave is 194 km long and about 950 m deep. It was discovered in 1875 by Alois Ulrich, who noticed that sometimes a strong current springs at the bottom of the usually dry gorge called Hell. more »

After surveying the gorge, he discovered an entrance into an unknown cave, which he named after the nearby gorge Hölle Loch (Hell's Hole) . The Hölloch Cave was opened to the public in 1905. It was considered to be the longest cave in the world until the discovery of the Mammoth Cave . The local speleologists are currently trying to connect the Hölloch Cave with the Silberen Cave. If they succeeded, it would create an underground space with a length of 230 km..

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GPS: 46.9762849021, 8.7883329391 Edit

Altitude: 742 m Edit

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