Ryūkakuji Iwaya Kofun

The Ryūkakuji Iwaya Kofun features three-step terraced slopes reaching 13.2 meters in height, with each side measuring 78 meters in length.

Built during the late 7th century, this burial mound contains two horizontal stone chambers constructed from tuffaceous sandstone containing regional shell fossils.

The stone chambers reflect the advanced burial practices of ancient Japanese society, demonstrating architectural techniques used for elite members of society.

Visitors can access the archaeological site through local tourism centers in Sakae, with the site coordinates at 35.821111 latitude and 140.277222 longitude.

This structure stands as Japan's largest square burial mound from its period, surpassing even the tombs of Emperor Yomei and Empress Suiko.

Location: Sakae

Inception: 7 century

Architectural style: square kofun

GPS coordinates: 35.82111,140.27722

Latest update: March 2, 2025 20:56