This kofun was excavated in 1887, and more than four hundred funerary goods such as pieces of iron bits and iron harnesses, bronze mirrors, and magadama comma-shaped bead were discovered.
1887年に発掘され、鉄轡や鉄製馬具の破片、銅鏡、勾玉など、400点余りの副葬品が発見された。