📅 From July 24 to August 28, 2026
📍 Avion, Pinchonvalles Slag Heap

This is an experience to try at least once in your life: climbing a slag heap, those iconic mining mountains of the Mining Basin! Accompanied by a mediator from the Pays d’art et d’histoire Lens-Liévin and a nature guide, you’ll discover the history of these slag heaps, the unique flora that grows there, and the grandiose landscape visible from the summit.

A walk between history and nature, accessible to everyone, that will make you see the territory from a different angle. The Pinchonvalles slag heap is one of the highest in Europe, a powerful symbol of the Mining Basin’s reconversion.

Source: Lens-Liévin Tourist Office