Ōta Tenjin-yama Kofun

The Ota Tenjin-yama Kofun extends 210 meters in length with a keyhole shape, featuring a square front section and circular rear portion at 40 meters elevation.

Built during the 5th century, this burial mound ranks as the 28th largest in Japan and stands as the only eastern Japanese kofun exceeding 200 meters in length.

The surfaces contained fukiishi stones and cylindrical haniwa figures depicting people and houses, reflecting the burial traditions of ancient Japanese society.

Visitors can examine the exposed stone sarcophagus and view additional artifacts from the site at the Ota City Nittaso History Museum.

The burial mound received its name from a former Shinto shrine dedicated to Tenjin that once stood at the narrow connecting section of the structure.

Location: Ota

Inception: 5 century

Architectural style: keyhole-shaped kofun

Website: http://city.ota.gunma.jp/005gyosei/0170-009kyoiku-bunka/bunmazai/otabunka44.html

GPS coordinates: 36.29168,139.39103

Latest update: May 11, 2025 04:57