The Aznalcóllar mine is a significant mining site located in the province of Seville, Spain. It primarily produces copper, zinc, and lead, contributing to the local economy and the mining industry. The mine has a rich history, with operations dating back to ancient times, and it has undergone various ownership changes over the years. In 1998, the mine was the site of a major environmental disaster when a dam burst, releasing toxic sludge into the surrounding area. This incident raised awareness about mining safety and environmental protection, leading to stricter regulations in the industry. Today, the mine continues to operate under improved safety measures.