Located in a mountainous region that was cut off from the rest of the world for a long period of time, these villages with their Gassho-style houses subsisted on the cultivation of mulberry trees and the rearing of silkworms. The large houses with their steeply pitched thatched roofs are the only examples of their kind in Japan. Despite economic upheavals, the villages of Ogimachi, Ainokura and Suganuma are outstanding examples of a traditional way of life perfectly adapted to the environment and people's social and economic circumstances.

The Gassho-style houses found in these Historic Villages are rare examples of their kind in Japan. Located in a river valley surrounded by the rugged high-mountain Chubu region of central Japan, these three villages were remote and isolated, and access to the area was difficult for a long period of time. The villages of “Ogimachi” in the Shirakawa-go region, and “Ainokura” and “Suganuma” in the Gokayama region are all situated along the Sho River in Gifu and Toyama Prefectures. In response to the geographical and social background, a specific housing type evolved: rare examples of Gassho-style houses, a unique farmhouse style that makes use of highly rational structural systems evolved to adapt to the natural environment and site-specific social and economic circumstances in particular the cultivation of mulberry trees and the rearing of silkworms. The large houses have steeply-pitched thatched roofs and have been preserved in groups, many with their original outbuildings which permit the associated landscapes to remain intact.