Dannemora mine

[1] The mine has a depth of 640 metres and supplied oregrounds iron by the Walloon process (Vallonsmide) using a blast furnace and finery forge.

the ownership structure changed in 1545, and a dozen wealthy individuals entered as the owners, so that a number of Germans and even King Gustav Vasa took part.

In 1728, at the initiative of Mårten Triewald (1691–1747), a steam-driven pump was installed, a Newcomen atmospheric engine, the first in Sweden, but it was never a success.

The failure was probably due to the technology, which worked flawlessly in England, being new to Sweden and was run by inexperienced staff.

1955 a new facility, with sorting plant and concentrator was finished and the annual production reached 600,000 tons.

During the latter part of the 1970s, output decreased but still amounted to about one million tonnes of crude ore, of which the bulk was exported.

Only four years later, during the crisis that hit the Swedish steel industry in the late 1970s, however, the state-owned SSAB was forced to take over the mine.

An opening ceremony featuring H M King Carl XVI Gustaf was held on 13 June 2012.

The estimated ore reserves have been revised up to 35 million tonnes, sufficient for at least 14 years production.