Lamprechtsofen is located 2 km (1.2 mi) northwest of Weißbach bei Lofer (Salzburg), Austria, in the Leogang Mountains.

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.

[1][6] 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.

[8] On August 14, 2018 a Polish expedition connects the CL3 chasm to the Lamprechtsofen allowing the cavity to reach the depth of 1735 m.[9] Today, about 700 m (2,300 ft) are open to visitors,[10] a portion of the cave that covers a 70-metre (230 ft) altitude difference.

[10] Because of the cave's river, it is subject to flooding from heavy rain and melting snow.