Teppōyama Kofun

Teppōyama Kofun is a large burial mound with a distinctive keyhole shape, consisting of a circular rear section and a rectangular front section. The overall structure rises prominently above the surrounding landscape and forms a notable archaeological complex within the Sakitama Kofun Cluster.

The mound was constructed around the 6th century, when the Kanto region was under the influence of powerful clans who demonstrated their control through such structures. This period marked a time of growing social divisions and organized societies in Japan.

This burial site served as a place of reverence for local leaders and shows how power and status were expressed during this period. The shape and size of the mound made it a landmark in the landscape that reminded the community of its most important figures.

The mound is accessible year-round and can be viewed from multiple vantage points to take in the entire keyhole shape. It is advisable to wear comfortable shoes, as exploring the site involves walking and occasional climbing on the structured surface.

Modern ground-penetrating radar surveys have revealed a hidden stone chamber on the eastern side of the circular section that is not visible from the surface. This discovery suggests that further structures lie beneath the soil that likely protected the original burial.

Location: Gyoda

Inception: 6 century

Architectural style: keyhole-shaped kofun

Part of: Sakitama Kofun Cluster

GPS coordinates: 36.12381,139.47821

Latest update: December 14, 2025 11:41