Designated a National Historic Site in 1992, it opened after restoration in 2010.
Finds & research
Cylindrical, house-, cuirass-, and shield-shaped haniwa indicate ritual activity at the projection-like feature. The Tenri City Board of Education’s 2011 report suggests that the main burial facility was lost when the southern half of the rear mound slid away, and infers that it was a clay enclosure.
Official status & archaeological view
Official status
It was designated a National Historic Site on 15 December 1992.
Archaeological view
A 106.5m keyhole mound at Ichinomoto, Tenri, dated to the late 4th century. A projection extends from the end of the rear circular mound. A cylindrical haniwa row and house-, cuirass-, and shield-shaped haniwa have been found.
Field notes
It can be visited as a developed historic park; check Tenri City for current conditions.