The Tateyama Kurobe Alpine Route was completed in 1971, and connects Toyama City in Toyama Prefecture with Omachi Town in Nagano Prefecture. The route was carefully built so that the surrounding environment is not damaged. Consequently, three lines go entirely under tunnels; among them, two are trolleybus lines. Trolleybuses have all gone from Japan, except for these two lines which are still used here as they don’t exhaust gas.
The route goes through Tateyama in the Hida Mountains with a lot of scenic sites, including Kurobe dam. The section between Kurobe Dam and ?gisawa was originally made for construction of the dam, while the section between Tateyama and Kurobeko was for tourists from the beginning. Currently, the route is purely a sightseeing one, only used by tourists.
The main attraction that draws the crowd to this route is the magnificent scenery of the Tateyama Mountain Range, part of the Chubu Sangaku National Park. The 20 meter high snow corridor is a highlight during spring, while alpine flowers and autumn colors attract hikers during the summer and autumn.
Along the route, some stations have hotels around them that are used as bases for mountain climbing or trekking.