The Mine that didn't produce Platinum

In the heart of the Dalarna region, the Swedish mountains of Gäddskärvor and the shores of Långsjö host the village of Strömsbruk - a place once defined by its mine. The mine was officially named 'Dannemora copper smelting works', and while its brand was 'Platinum Mine', it never produced platinum. Instead, it produced copper. The mine, which opened in 1890, reached a depth of 340 meters, making it one of the deepest mines in Sweden at the time. It stopped production in 1937, but continued until 1975. The mine and the village that thrived around it have remained a relic of Sweden's industrial past.

Sources: Wikipedia, OpenStreetMap, Wikidata