A National Historic Site placed among the earliest mounds of the Yamato group.
Finds & research
Investigations in 1993–94 identified an approximately 7.5m pit-style stone chamber, abundant stone facing, and fragments of special pedestal vessels. The official account does not establish a detailed grave assemblage.
Two views on the occupant
Archaeological view
An approximately 130m keyhole mound at Nakayama, Tenri, built in the late 3rd century. Its rear contains an approximately 7.5m-long pit-style stone chamber, and the mound was extensively stone-faced.
Imperial Household Agency view
This is not an IHA mausoleum. On 6 October 2014 it was designated part of the National Historic Site Yamato Kofun Group together with Nomugi and Shimoikeyama Kofun.
Field notes
Follow Tenri City guidance and the site’s public boundaries. Do not enter farmland or the mound without permission.