Reclaiming the old Olympias tailings management facility has been a challenging multi-phase undertaking. Courtesy of Eldorado Gold

In 2012, Vancouver-based Eldorado Gold expanded its reach into one of Europe’s most mineral-rich zones—a region with a mining history spanning more than 2,500 years—when it acquired Hellas Gold and its Kassandra Mines complex in the Halkidiki region of northern Greece as part of a merger with European Goldfields. Its main assets include the Skouries copper-gold project and the Olympias gold-silver-lead-zinc mine.