| Dunderland Line | |
|---|---|
 | |
| Overview | |
| Native name | Dunderlandsbanen |
| Status | Assimilated into the Nordland Line |
| Owner | Dunderland Iron Ore Company |
| Termini | |
| Service | |
| Type | Railway |
| Operator(s) | Dunderland Iron Ore Company |
| History | |
| Opened | 1904 |
| Technical | |
| Line length | 23.7 km (14.7 mi) |
| Number of tracks | Single |
| Character | Iron ore freight |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
| Electrification | No |
The Dunderland Line (Norwegian: Dunderlandsbanen) was a 23.7 km (14.7 mi) railway line between Gullsmedvik in the town of Mo i Rana and the village of Storforshei in Rana Municipality in Nordland county, Norway. Since 1942 the line has been part of the Nordland Line. The line was originally built and owned by Dunderland Iron Ore Company, which used it to freight iron ore from their mine at Storforshei to the port at Gullsmedvik.
The line was built to exploit iron ore which had been discovered by Nils Persson and later sold to Edison Ore-Milling Company. Construction of the line started in 1902, it was completed two years later and revenue services started in 1906. The mine had many operating difficulties, and operations fell to a halt several times for years. With the German occupation of Norway in 1940, the Wehrmacht and Organisation Todt started building the Nordland Line, with the Dunderland Line being upgraded and connected to the mainline on 15 May 1942. After the war, the Norwegian State Railways had to carry out extensive upgrades to the line for it to meet modern standards.