I believe that tours of the mine are operated from the Kiruna tourist office, but to a worked out area set up as a show mine. The mine operation is most impressive, with much remote controlled machinery and is large enough to have its own internal bus service! Information, in English, is on the LKAB web site, including a vertical section. Parts of Kiruna are planned to be moved, as the workings are starting to undermine the town.
The railway operation to Narvik is also impressive - recent investment upgrades now allow trains of over 60 wagons, each of 100 tonne payload, hauled by permanently coupled pairs of Bombardier 7200hp (5400kW) Co-Co electric locos. They are the heaviest freight trains in Europe.