An early keyhole mound regarded as the leading tomb of the Hiromine group. Part of the former site is now a memorial park.
Finds & research
The finds, designated National Important Cultural Properties, are a coiled-dragon mirror dated by inscription to Jingchu 4 (240), two jasper tubular beads, an iron sword, an iron spear, an iron axe and an iron plane.
Official status & archaeological view
Official status
The mound was lost after its 1986 excavation. The assemblage is designated a National Important Cultural Property.
Archaeological view
A lost keyhole mound formerly on a hill at Higashihago, Fukuchiyama, reconstructed at 40m long with a rear circle 25m across. It was cut from natural ground without fill, tiers, haniwa, or stone facing. The burial was a red-painted plank-built box coffin placed directly in a grave pit.
Field notes
The mound no longer survives; Hiromine Kofun Memorial Park has a scale model and interpretation. Check Fukuchiyama City for current artifact displays.