The slope between Umagaeshi in the City of Nikko and Lake Chuzenji in Tochigi Prefecture on Route 120 is known for beautiful crimson leaves on the trees along the road in autumn.
Roads - Misc
The path was traveled in old times by worshippers heading to Mt. Nantai and Chuzen Temple.
The slope was given its current name, Irohazaka, during the early Showa period. Since the path has 48 curving locations, which coincides with 48 characters in the old Japanese alphabet of i, ro, ha, and so on, on the guide announcement of the aerial tramway.