Discovery of an old coal mine which closed towards the end of the 1960s. The place then served as a repair workshop for Ford vehicles.

Former coal washing plant of Blegny Mines. Visit of this part of the museum (former Belgian colliery) generally closed to the public.

Ce bâtiment en état de délabrement constitue le seul vestige de l'ancien Triage-Lavoir des Hiercheuses