The Norilsk railway connects the river port of Dudinka with the mining towns of Kayerkan, Norilsk, and Talnach. Different ore mines and industries are also connected to the line. The line has a single track. Originally, it was done as a narrow-gauge railway (gauge: 1m); later it was re-done as a Russian standard gauge (of 1.5m). It used to be electrified, but this was removed in the 1990s. Since then it only runs freight trains.