An emergent keyhole-shaped mound within the Makimuku site. It is part of the Makimuku Kofun Group.
Finds & research
Mid-3rd-century pottery from the moat; the central burial facility and secure grave goods remain unconfirmed.
Official status & archaeological view
Official status
It was added to the National Historic Site Makimuku Kofun Group (Makimuku Ishizuka and Hokenoyama, designated 2006) together with Makimuku Katsuyama on 17 February 2026, following the Council for Cultural Affairs’ recommendation of December 2025.
Archaeological view
An approximately 96m Makimuku-type keyhole-shaped mound at Higaida, Sakurai, with a short front. Pottery from the moat dates to the mid-3rd century and indicates the latest possible date of construction, though it does not establish an exact year.
Field notes
Do not enter farmland or private property; observe only from public roads and authorized areas.