Trou de l’Abîme

Trou de l’Abîme also known as La caverne de l'Abîme and Couvin Cave is a karst cave located in Wallonia on the right bank of the Eau Noire river in the center of Couvin, Belgium, in Namur province. During various archaeological excavations of sediment deposits, Mousterian artefacts and a Neanderthal molar were discovered.