A mound watching over the fishing hamlet of Mera at Osaki, Kainan — proof that the stone-shelf tradition reached seaside chiefs beyond the Ki River valley.
Finds & research
Shelf-equipped corridor chamber.
Two views on the occupant
Archaeological view
A round mound ~15m across of the late 6th century with a shelf-equipped chamber. Nearly half of Japan's ~100 shelved chambers cluster in Wakayama, almost all along the Ki River — making this coastal example exceptionally rare.
Imperial Household Agency view
Not designated by the IHA. Wakayama Prefectural Historic Site.
Field notes
On the low hill behind the hamlet (~19m elevation); viewable from outside.