Ichimai-iwa, Natural monument in Kozagawa, Japan.
The monolith measures 100 meters in height and 500 meters in width, forming a massive single rock surface without any visible cracks or divisions.
The Japanese government designated this geological formation as a Natural Monument in December 1941, recognizing its exceptional geological significance.
Local folklore tells of a guardian dog that protected the rock from monsters, with its shadow appearing on the rock face twice yearly.
The Ichimai-iwa roadside station provides parking facilities, restrooms, and a restaurant serving local specialties while offering direct views of the rock formation.
During rainy periods, water cascades down the rock face creating the Yin-Yang waterfall, which local residents connect to an ancient monster tale.
Location: Kozagawa
GPS coordinates: 33.54814,135.71658
Latest update: May 12, 2025 13:20
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