A major Magdalenian cave complex in the Ariege department of southwestern France, with over 14 km of underground passages. Its celebrated Salon Noir chamber contains vivid charcoal and hematite paintings of bison, horses, ibex, and deer, radiocarbon-dated to at least 14,000 years ago. Discovered in 1906 by Commander Molard, the paintings were authenticated by Emile Cartailhac and Henri Breuil as genuine Paleolithic art. The cave also preserves children's footprints in the Reseau Clastres gallery, showing that young people aged 8-12 ventured deep underground alongside adults.
Cave of Niaux

| Type | Cave Structures |
|---|---|
| Period | 500 BC - 1 AD |
| Country | France |
| Coordinates | 42.8209° N, 1.5936° E |
France