Norwegian railroading went through a total revolution in a short time What used to be the state railways NSB, is no longer state railways and no longer called NSB but Vy (meaning view in English). After a series of public tenderings Vy has only the Oslo region regional and suburban traffic plus the long distance line from Oslo to Bergen left. Almost everything else is now operated by the Swedish state railways SJ under their trademark SJ Nord.
This is a former Norwegian state railroads NSB BM73 train, now running for the Swedish SJ Nord in new paintings. Photo from Trondheim 7.7.2022 by Marek Graff.

A typical modern regional train in Norway nowadays, this is a Swiss Stadler built third generation FLIRT at Kongsvinger station 30.6.2016. It's here still in the colours of those days when Norwegian state railways was NSB and not Vy.
Photo by Ilkka Siissalo

Norway is a very long country with very difficult terrain. Train lines are few and train traffic is often scarce, except for the region around capital city Oslo in the south. The most important long distance rail lines are the ones from Oslo to Göteborg in Sweden and from Oslo to Stavanger, Bergen and Trondheim, and these are all electrified lines. But then the very impressive line to the very north, Trondheim - Mo i Rana - Bodø is still diesel driven. Like in many other European countries, the cargo part of the former state rail monopoly NSB, Norske Statsbaner, now Vy, operates nowadays as a separate company under the name CargoNet. Passenger traffic is mostly today operated by the Swedish state railways SJ through their Norwegian daughter company SJ Norge AS, marketed as SJ Nord. From the existing long distance lines only the Oslo to Bergen route is now in the hands of Vy, the former Norwegian state railways.

• State railways, formerly NSB, now Vy, multiple units
• Electric locomotives
• Diesel locomotives
• SJ Nord, the subsidiary of Swedish state railways in Norway
• Metro of Oslo
• Trams
• National railway museum, Norsk Jernbanemuseum
• Other museum railways and railway museums

This is the most modern electric locomotive of Norway, NSB's class El18. They are built by ADtranz in Switzerland and are practically identical to the Swiss class Re460 and the Finnish class Sr2.
Picture from Flåm 2.7.2016 by Ilkka Siissalo.