Climbing the Slag Heaps: Conquer the Tallest in Europe at Loos-en-Gohelle
📅 August 21-28, 2026
📍 Twin slag heaps of Loos-en-Gohelle (Pas-de-Calais)
It’s an experience to try at least once in a lifetime: climbing a slag heap, these iconic artificial hills of the mining basin, listed as a UNESCO World Heritage Site.
The ascent of the twin slag heaps of Loos-en-Gohelle, peaking at nearly 190 meters, offers an exceptional panorama over the entire mining basin. At the summit, the view extends on clear days all the way to the English Channel coast. It’s also the opportunity to understand the unique geography of this territory marked by the mining industry.
Guided tours are organized regularly, allowing visitors to discover the wildlife and flora that have recolonized these spaces since the end of mining operations. A journey between nature, history and remarkable landscape.
An unforgettable walk in the heart of World Heritage!
