The railway uses a narrow gauge track of 762 millimeters, which is significantly smaller than the standard Japanese gauge of 1,067 millimeters.
The train passes through the Koro-dani area, which is known for the 'Kurobe no Sekibutsu,' a small stone Buddha statue carved into the cliff face.
The entire route from Unazuki to Keyakidaira features a total elevation gain of approximately 398 meters.
The railway operates in a region with some of the highest annual snowfall in Japan, with some areas receiving over 10 meters of snow annually.
The power plants served by the railway are essential for the industrial operations of the YKK Group, which has deep roots in the region.
The Kurobe Gorge Trolley Train, operated by Kurobe Gorge Railway Co., is an open-air narrow-gauge railway running through Japan's deepest V-shaped gorge. The line spans 20.1 kilometers from Unazuki Station to Keyakidaira, traversing 41 tunnels and 21 bridges. Originally constructed to support the building of hydroelectric power plants in the 1920s, the line transitioned into a scenic tourist route. The train cars offer varying levels of enclosure, ranging from standard open-air benches to private, enclosed carriages. The route follows the crystal-clear Kurobe River, passing the prominent blue Shin-Yamabiko Bridge shortly after departure. Passengers can stop at several stations, including Kanetsuri and Kuronagi, which provide access to riverside hot springs and walking trails. The track gradient reaches a maximum of 1:19 in certain sections. The line is restricted to specific operating dates due to heavy snowfall in the Northern Japanese Alps. It remains a critical access point for maintenance workers and hikers navigating the remote mountainous terrain.
The view from the train while crossing the Shin-Yamabiko Bridge, which offers an unobstructed look at the gorge and the river below.
Choose an open-air car for the best photographic views, but bring a windproof jacket as the tunnel air is significantly colder than the outside temperature.
Book your tickets in advance, especially during the autumn foliage season when the line reaches peak capacity.
Check for trail status at Keyakidaira before departing, as paths can close due to weather-related damage or rockfalls.
Do not wait until the day of travel to purchase tickets, as seats often sell out entirely in advance.
The railway is closed during the winter season (typically December through mid-April) due to severe snow accumulation.
Remain seated while the train is in motion; do not lean out of open-air cars due to tight tunnel clearances.
