It is a 113-meter long keyhole-shaped mound located on a terrace and its front square part slightly expands like a dovetail, but the expanded length does not exceed the diameter of its back circular part.
台地上に立地する墳丘長113メートルの前方後円墳で、短めの前方部はわずかに撥形に開いており、その開きは後円部の直径を超えるものではない。