18 June 2018
A copper and zinc mine has been operating in Pyhäjärvi, located in the Oulu Region in Finland, since the 1960s. The mine is Europe’s deepest. It will stop operating at the end of 2019, but afterwards, the facilities will be available for entirely new purposes. Sweco will implement both the underground and the above-ground zoning of the new Callio Pyhäjärvi area, which is up to 1,445 metres deep.