"Transport for LKAB" - a near view of Dm3 1201-1231-1202 "Kunigunda" and its coupling rods in motion as the train heads for the mountain ridges at Torneträsk. I can tell you that standing this near when it all passes by is a spectacular thing.

Although there have been several periods of modernisation of the catenary, this picture shows some poles from the electrification back in 1913-1914.