This burial mound, which takes up the majority of the grave mound, is an approximately 22.5 m diameter circular burial mound with a structure on the southern edge, and it is thought from the haniwa (terra cotta clay figures) used to date from the latter part of the 5th century.
古墳は、すでに墳丘のほとんどを削られていたが、南側に造り出しをもつ直径約22.5mの円墳で、使用された埴輪から5世紀後半の築造と考えられる。