Seegrotte
The Seegrotte, near Hinterbrühl, Austria, is a cave system with a large grotto located under a former gypsum mine.
It was closed in 1912 after the mine flooded with 20 million litres of water. It became a tourist attraction after 1930 and has been one ever since, with the exception of World War II.[1][2] The lake is 60 meters below ground, the water surface is 6200 m² and pumps are used to keep the water level down.[2]
Visitors can tour the old mine and take a boat ride across the underground lake.
World War II history[edit]
During World War II the Seegrotte was used for production of Heinkel He 162A jet fighters in Nazi Germany's "second Ruhr".[1][3]
References[edit]
- ^ a b "Development of the He 162". 18 January 2023. Archived from the original on 2013-10-02.
- ^ a b "Die Seegrotte Hinterbrühl". 18 January 2023.
- ^ Galland, Adolf (1968) [1954]. The First and the Last: The Rise and Fall of the German Fighter Forces, 1938-1945. Ninth Printing - paperbound. New York: Ballantine Books. p. 237.
External links[edit]
Wikimedia Commons has media related to Seegrotte Hinterbrühl.
48°05′09″N 16°15′27″E / 48.08583°N 16.25750°E
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