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Takachiho, famous for Ama-no-Iwato and Takachiho Gorge, is full of columnar joints. Why are there so many columnar joints? This time, we will again explore the area on our RS660 and discuss the matter. Looking at this strange landform, it seems like it might inspire mythology. ★ Chiri Rider's Twitter (Follow now) / chiri_rider ★ Question box (For questions or requests not directly related to the video, please go here) https://peing.net/ja/chiri_rider Source of geological map: AIST Geological Survey of Japan "1:200,000 Seamless Geological Map of Japan v2" https://gbank.gsj.jp/seamless/v2.html