伊豆箱根鉄道
The line was opened on October 16, 1956 by the Sunzu Railway Company, which was acquired by the Izuhakone Railway in 1957. The line climbs Jukkoku Pass, literally meaning "ten countries pass", as it is claimed that ten "countries" (old provinces of Japan) can be seen from the summit of the pass. The line runs on average every eight minutes, with travel time in each direction at 3 minutes. The cars on the line are painted in the colors of the Seibu Lions baseball team, which is owned by Izuhakone Railway's parent company, Seibu.