|Location||Weißbach bei Lofer, Austria|
|Depth||1,727 m (5,666 ft)|
|Length||51 km (32 mi)|
|Elevation||664 m (2,178 ft)|
Lamprechtsofen (also called Lamprechtshöhle, Lamprechtsofenhöhle or, together with a connected cave, Lamprechtsofen-Vogelschacht) is a limestone karst river cave in Austria. With a depth of 1,735 m (5,692 ft), it is one of the deepest caves in the world. Before the discovery of the Krubera Cave in Georgia, it was the deepest-known cave in the world. Lamprechtsofen is located 2 km (1.2 mi) northwest of Weißbach bei Lofer (Salzburg), Austria, in the Leogang Mountains.
The cave has been known for centuries. In 1701 it was walled up to prevent the intrusion of treasure seekers, who were lured to the cave by legends of wealth hidden by a knight named Lamprecht after the Crusades.
In 1905, several human skeletons were found in the cave, probably the remains of treasure hunters. At the same time, a 600-metre (2,000 ft) portion of the cave was opened to the public as a show cave.
Exploration and depth record
On August 19, 1998, a team led by Polish caver Andrzej Ciszewski discovered a connection between Lamprechtsofen and the PL-2 cave system, which established the height difference of the united cave system as 1,632 m (5,354 ft). This new discovery made Lamprechtsofen the deepest-known cave in the world for less than three years, as Krubera was discovered in June 2001 to be 2,197 metres (7,208 ft) deep.
As of 2014, Lamprechtsofen is the fourth-deepest cave in the world, as two more Georgian caves have since been discovered to be deeper. Sarma Cave is 1,830 m (6,000 ft) and Illyuzia-Mezhonnogo-Snezhnaya Cave is 1,753 m (5,751 ft). On August 14, 2018 a Polish expedition connects the CL3 chasm to the Lamprechtsofen allowing the cavity to reach the depth of 1735 m.
Because of the cave's river, it is subject to flooding from heavy rain and melting snow. As such, visitors and explorers have been occasionally trapped in the cave.
- Duckeck, Jochen (April 25, 2013). "Lamprechtsofen". Show Caves of Austria. Retrieved March 31, 2014.
- Pfarr, Theo; Seebacher, Robert; Plan, Lukas (2023-02-15). "Die tiefsten Höhlen Österreichs" (PDF). Verband Österreichischer Höhlenforscher.
- Courbon, Paul (1989). Atlas of the Great Caves of the World. Cave Books. p. 146. ISBN 9780939748211.
- Gunn, John (2004). Encyclopedia of Caves and Karst Science. Taylor & Francis. p. 674. ISBN 9781579583996.
- White, William B.; Culver, David C. (2012). Encyclopedia of Caves. Academic Press. p. 319. ISBN 9780123838322.
- Janiszewski, Bartosz (March 29, 2001). "Lamprechtsofen". Retrieved March 31, 2014.
- Barnes-Svarney, Patricia L.; Svarney, Thomas E. (2004). The Handy Geology Answer Book. Canton, MI: Visible Ink Press. p. 330.
- Gulden, Bob (March 10, 2014). "World's Deepest Caves". Retrieved April 3, 2014.
- Chris Kleszynski (2018-10-24). "World record in Lamprechtsofen, Austria". Retrieved 2021-02-19.
- "The natural wonders of the Saalachtal". Saalachtaler Naturgewalten. Archived from the original on July 30, 2010. Retrieved April 3, 2014.