The history of Kurobe Gorge Railway started paralell with the power development in Kurobe Gorge. It was a railway stretching 20.1 kilometers from Unazuki station, which was exclusively used by the construction workers. In later years, it was permitted to run as a tourist train and started the service. The train , which is is very popular with tourists and nicknamed Torokko Train, is a narrow gauge train which runs 16km per hour on average, carrying as many as 300 passengers to many wonderful tourist spots in the gorge.