Kongsberg Silver Mines
The silver mines of Kongsberg, in Buskerud county in Norway, constitute the largest mining field in Norway, with over 80 different mines. It was the largest pre-industrial working place in Norway, with over 4,000 workers at its peak in the 1770s and supplied over 10% of the gross national product of the Danish–Norwegian union during its 335-year-long history: over 450,000 man-years were expended in the production.
Kåfjord Copper Works
The "Big Mine" ("Storgruva") in Kåfjord, which was located above Strømsnes, was also called the Marit Mine ("Maritgruva") in memory of Maret Aslaksdatter. The four other mines that were set up in Kåfjord by 1827 were named after stakeholders in the copper works: the Woodfall Mine ("Woodfalls gruve"), Crowe Mine ("Crowes gruve"), Ward Mine ("Wards gruve"), and Nellen Mine ("Nellens gruve"). All of these were in the mountains above Kåfjord. The Raipa Mine ("Raipas gruve") is located on a ridge known as Lille-Raipas and is believed to have been opened in 1685. Two men from Alta presented two ore samples at a meeting in Sørøya in that year, and the description of the site indicates that the samples came from Raipas. Alten Copper Works operated the mine from 1836 to 1869. The Raipas Mine and the "Old Mine" ("Gammelgruva") in Kåfjord were the two most important mines for the copper works in Kåfjord.