三昧塚古墳, Keyhole-shaped burial mound in Namegata, Japan.
The Zanmaiduka Kofun measures 85 meters in length, featuring a circular rear section of 47 meters diameter and a rectangular front portion 36.5 meters wide.
During excavations conducted between March 19 and April 7, 1994, researchers discovered numerous artifacts including cylindrical clay figures and pottery fragments.
The burial chamber contains a stone coffin with extended burial arrangements, accompanied by bronze mirrors, horse-shaped ornaments, and decorative metalwork.
The site underwent restoration work in 2005 following damage from flood control construction, making it accessible for public viewing in Okisu district.
The tomb yielded the only known golden bronze crown decorated with both horse-shaped and tree-shaped ornaments, featuring perforated heart patterns and floral designs.
Architectural style: keyhole-shaped kofun
GPS coordinates: 36.15481,140.36591
Latest update: March 9, 2025 20:52
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