From the Vigsnes Copper Mine to the copper mines in Montana
In the 1870s and into the 1880s the copper and pyrite mine at Vigsnæs in Avaldsnes on the west coast island of Karmøy was the largest mine in Norway. For more than a decade the newcomer, now known as Visnes or Vigsnes, on the North Sea surpassed the 300-year-old Royal silver mining establishment at Kongsberg […]
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