The largest keyhole mound in Mie Prefecture (188m). National Historic Site in Iga City. An early 5th-century mound symbolizing Yamato authority's eastward push. Local tradition links it to Prince Ohiko. Interior remains unexcavated; grave goods unknown.
Finds & research
Interior unexcavated. Cylindrical and house-shaped haniwa fragments have been collected from the surface.
Two views on the occupant
Archaeological view
The largest keyhole mound in Mie Prefecture (188m — rear circle 110m dia., 14m high; front section 80m wide, 10m high). Outstanding even among non-Kinai keyhole mounds. Equipped with moat and projecting platforms. Located in Sanagutecho, Iga City. Early 5th century; a large mound symbolizing Yamato authority's eastward expansion. Local tradition associates it with Prince Ohiko, son of Emperor Kogen. Interior remains unexcavated.
Imperial Household Agency view
Not designated by the IHA. Designated a National Historic Site in 1921 (additional designation in 1970).
Field notes
Located in Sanagutecho, Iga City. About 20 min walk from JR Kansai Main Line "Sanagutsu" Station. Good companion to Ishiyama Kofun (id:329) on an Iga kofun tour.