The mausoleum is identified as Nishiura Shiraga-yama kofun Tumulus (a keyhole-shaped mound of 112 meters in the total length) which is located in 6-chome, Nishiura, Habikino City, Osaka Prefecture.
大阪府羽曳野市西浦六丁目の西浦白髪山古墳（前方後円墳・全長112m）に比定されている。