Exposed remains of a terminal-period tomb chamber in Asuka, Nara Prefecture, popularly named after an ogre legend but actually consisting of its floor and lid stones.
Finds & research
The floor and lid stones of a side-entry chamber; excavation evidence is limited and occupant and grave goods are unknown.
Official status & archaeological view
Official status
Managed by the IHA as a satellite tomb of Emperor Kinmei's mausoleum.
Attribution (jitei): the Imperial Household Agency's determination of whose tomb it manages — separate from heritage designation.
Archaeological view
The mound is lost, and its original shape and size are unknown. The floor stone (“Manaita”) and lid stone (“Setchin”) of a side-entry chamber remain exposed. The chamber's interior measures about 2.5m deep, 1.5m wide and 1.3m high. The tomb is broadly dated to the 7th century. Its relationship to Emperor Kinmei's mausoleum, in terms of occupant and date of construction, has not been archaeologically confirmed.
Field notes
Because the site includes IHA-managed land, observe access boundaries and posted signs.