Zenizuka Kofun is a scallop shell-shaped mounded tomb located between Nintoku-tenno-ryo Kofun [2-1] and Richu-tenno-ryo Kofun [15].
The mound length is 72 m, and the surviving height of the rounded rear part is 2.3 m.
On the north side of the round part, a part of the terrace and rows of cylindrical haniwa have been detected.
The construction period dates to the second half of the 5th century.