It's the largest tumulus among the Oyamato-kofun Tumulus Cluster which spreads over the south of Tenri City, and it's situated at the site of Tashiraka no Himemiko Fusumada-ryo Mausoleum which was written to be in Yamabe County by Engishiki (an ancient book for codes and procedures on national rites and prayers).
天理市南部に広がる大和古墳群の中でも最大の大きさであり、延喜式で山辺郡にあったとされる手白香皇女衾田陵の位置にあたる。