A 154m-long keyhole mound at Nonaka in Fujiidera. Investigations including those in fiscal 1984, 1985, and 2004 identified stone facing, rows of cylindrical haniwa, a projection on the south side of the constriction, and the surrounding ditch-and-embankment system. Although altered in later times, it preserves evidence for a large mound from the early phase of the Furuichi group.
Finds & research
Stone facing, cylindrical and jar-shaped haniwa, and varied figural haniwa have been identified. Exposed stones on the rear-circle summit suggest a pit-style chamber, but the burial facility and grave goods remain unconfirmed.
Official status & archaeological view
Official status
It is not included in the designated National Historic Site Furuichi Kofun Group; Fujiidera City treats it as an undesignated mound in its conservation plan.
Archaeological view
A keyhole mound on a low terrace, with a 90m-wide front section and a rear circle 100m across and 14.1m high. The three-tiered mound faces west and has a surrounding ditch and embankment, an outer delimiting ditch, and a projection on the south side of the constriction. Fujiidera City gives the end of the 4th century in its World Heritage summary and the first half of the 5th century based on haniwa in its detailed kofun account.
Field notes
The mound has been modified in later periods, and most of it lies within the precincts of Nonaka Shrine. The southern part of the moat is a children's park, with one explanatory sign.