A roughly 50m keyhole mound in Yasu's Sakurabasama Historic Park, part of the National Historic Site Oiwayama Kofun Group. A small corridor chamber was found in its front, and Korean-style pottery came from its rear mound.
Finds & research
A 4.3m right-sleeved corridor chamber in the front yielded no artifacts. Haji ware, Sue ware, stoneware, and Korean-style pottery came from the rear mound.
Two views on the occupant
Archaeological view
A keyhole mound about 50m long. A Yasu City excavation report says no burial facility was confirmed in the rear, while a 4.3m right-sleeved corridor chamber was found in the front. The chamber yielded no finds; Haji ware, Sue ware, stoneware, and Korean-style pottery came from the rear mound. The report dates construction to about the late 5th to early 6th century.
Imperial Household Agency view
Not designated by the IHA. Part of the National Historic Site "Oiwayama Kofun Group" (added 1985).
Field notes
In Sakurabasama Park (9:00–17:00, last admission 16:30, closed Mondays and some other days, free), together with Kabutoyama (id:592) and Maruyama.