Kelmis (La Calamine), July 11th, 2024. The museum of “Vieille Montagne” or “Altenberg” tells the story of the extraction of zinc from the old mountain. A short stroll from there brings you to the riverbank where the ore was washed and sorted out. This created a hill of waste material, where the extremely rare viola calaminaria (NL = groeiend op galmeigrond) and other zinc-loving plants can grow…
