The burial facilities: The main chamber, a pit stone chamber (approximately 3.6 meters in length and approximately 3.6 meters in width) along the north-south axis in the center of the back circular part mound, and a hollowed-out wooden ship-shaped coffin (approximately 2 meters in length and approximately 1.2 meters in width), from which copper arrowheads and iron vessels were found.
埋葬施設：主室は後円部墳丘中央部の南北主軸に沿う竪穴式石室（長さ約3.6メートル、幅約3.6メートル）、舟形の刳抜式木棺（長さ約2メートル、幅約1.2メートル）で同棺からは同鏃と鉄器が出土した。