The only shell mound in Japan designated a Special Historic Site, the size of three Tokyo Domes.
Two large horseshoe-shaped shell mounds, built up in different phases of the Jōmon and later merged into a single site, form the largest accumulation of this kind in Japan. On the site, three times the size of the Tokyo Dome, you can see a stratigraphic section of the mound, reconstructed wooden huts and the museum with the pottery, stone tools and human and animal bones found in the excavations.
Kasori Kaizuka was the first shell mound in Japan to be designated a ‘Special Historic Site’ (特別史跡), the highest category of protection, and it remains the only one in its category.
ℹ️ Free admission. Open 9:00–17:00 (last entry 16:30), closed on Mondays (source: research compiled from tourist websites and Chiba municipal websites).
🚉 Sakuragi · 13 min walk
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