Narrow-gauge railways in Norway

In Norway, a number of main lines were in the 19th century built with narrow gauge, 3 ft 6 in (1,067 mm), to save cost in a sparsely populated mountainous country.

This included Norway's first own long-distance line, the Røros Line, connecting Oslo and Trondheim, 1877.

Some secondary railways also had this gauge.

These railways have been rebuilt to standard gauge or closed down.

The Trondheim Tramway is also narrow gauge.