Ariège
Le Mas-d’Azil is a gigantic 150-metre-long gallery through which the river Arize twists and tumbles. Upstream, its entrance is over 50 metres high and 48 metres across. In the last century, the biggest Magdalenian habitation ever discovered was found when building a road through this natural tunnel.
The importance and uniqueness of these prehistoric remnants earned Le Mas-d'Azil a place in history: one of the Mesolithic periods was named "Azilian" (9,000 years).
Firstly inhabited by animals, the inner galleries of the cave contain many mammoth, bear and rhinoceros bones.