Ayamezuka Kofun, Ancient burial mound in Nishikan Ward, Japan
The Ayamezuka Kofun extends 53 meters in length with a circular portion of 33 meters in diameter and a rectangular section measuring 18 meters wide.
Built during the 5th century, this keyhole-shaped tomb received its designation as a National Historic Site of Japan in 1938, marking its archaeological importance.
An excavation in 1812 revealed a significant bronze mirror with dragon patterns, which now holds status as a Niigata Prefectural Important Cultural Asset.
The burial mound sits within the grounds of Kanzen-ji temple at the eastern foot of Mount Kakuda, where visitors can examine its distinctive shape.
Archaeological studies uncovered evidence of the structure's transformation into a sutra mound during the late Heian through Muromachi periods.
Location: Nishikan Ward
Architectural style: keyhole-shaped kofun
GPS coordinates: 37.76685,138.86569
Latest update: March 7, 2025 02:58
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