Lombrives, Cave in Ussat, France
The Lombrives cave system extends through 39 kilometers of corridors within a limestone mountain between the Vicdessos and Ariège valleys.
Archaeological discoveries reveal that humans occupied the cave during the Neolithic period, and later it provided shelter for Cathars between the 12th and 14th centuries.
The Cathedral Chamber reaches a height of 80 meters and contains enough space to fit the entire Notre-Dame Cathedral of Paris inside its walls.
Visitors can select from multiple tour options ranging from 1 to 7 hours, with prices starting at 12 euros for adults and 8 euros for children.
In 2021, fifteen volunteers participated in the Deep Time experiment, spending 40 days inside the cave without access to clocks, daylight, or external communication.
Location: Ussat
Address: Lombrives, 09400 Ussat, France 09400 Ussat
Website: http://grottedelombrives.com
GPS coordinates: 42.82322,1.61631
Latest update: August 12, 2025 10:26
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