Ichimai-iwa

Ichimai-iwa is a natural monument in Kozagawa consisting of a single massive rock face that extends across impressive dimensions. The stone wall shows no visible cracks or divisions across its entire surface.

The rock face was recognized as a natural monument by the Japanese government in 1941 and protected for its exceptional geological characteristics. This designation acknowledged the formation's importance to understanding the region's geology.

The rock holds a place in local stories that visitors encounter while viewing the formation. People stop here to observe the scale of the stone and engage with the narratives passed down through the community.

Visitors can view the monument from the adjacent roadside or stop at the nearby station, which provides parking and basic facilities. Access is possible during daylight hours, and specialized equipment is not needed for viewing.

After heavy rain, water flows over the rock face and creates patterns that visitors connect with natural phenomena. Some of these waterfall patterns are woven into local stories passed down through generations of residents.

Location: Kozagawa

GPS coordinates: 33.54714,135.72056

Latest update: December 7, 2025 20:24