A round mound about 150m west of the south-west corner of Hakayama Kofun's outer embankment. It is about 62m across in the Agency for Cultural Affairs and Fujiidera City World Heritage accounts (65m in the city's historic-site account); a projection on the south-west side brings its total length to 72m, and it stands 10m high. The largest round mound in the Furuichi area, its circular portion has two tiers and is surrounded by a circular moat. The official World Heritage website dates it to the first half of the 5th century, the Agency for Cultural Affairs to the middle phase of the Middle Kofun period, and Fujiidera City to the mid-5th century. Part of the National Historic Site Furuichi Kofun Group, it is a constituent monument of the Mozu-Furuichi Kofun Group World Heritage Site, inscribed in 2019.
Finds & research
A circular moat rings the mound. Cylindrical haniwa and numerous figural haniwa have been recovered. Details of the burial facility remain unconfirmed.
Official status & archaeological view
Official status
A National Historic Site (added to the Furuichi Kofun Group designation in 2001). The designated land is owned by Fujiidera City, private individuals and joint owners; as of the 2023 preservation plan, Fujiidera City is not the legally appointed managing body under the Act on Protection of Cultural Properties. The city board of education carries out routine upkeep, such as weeding, on city-owned land.
Archaeological view
A round mound, occupant unknown. It is the largest round mound in the Furuichi area (Agency for Cultural Affairs). It stands in Aoyama, Fujiidera.
Field notes
The official World Heritage site gives about a 14-minute walk west from Kintetsu Furuichi Station (Minami-Osaka Line).