Okunoyama Kofun, Ancient keyhole burial mound in Gyoda, Japan
The Okunoyama Kofun measures 70 meters in length with a circular portion of 43 meters in diameter and a rectangular section reaching 7.4 meters in height.
Constructed in the middle of the 6th century, this burial mound received National Historic Site status in 1938 and Special National Historic Site designation in 2020.
Excavations revealed multiple types of haniwa clay figures, including cylindrical, horse-shaped, and shield-bearer forms, indicating specific funeral practices of ancient Japanese society.
The archaeological site maintains regular visiting hours throughout the year and connects to other tombs within the Sakitama Kofun Cluster through maintained pathways.
The southwestern corner of the kofun contains a protruding middle bank and rare Sue ware jars, features uncommon in the Kanto region of Japan.
Location: Gyoda
Inception: 6 century
Architectural style: keyhole-shaped kofun
Part of: Sakitama Kofun Cluster
GPS coordinates: 36.12289,139.47711
Latest update: March 5, 2025 08:20
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