This tumulus is included in the Wakakodama tumulus group, and is called the Jizozuka tumulus because the Jizo-do is enshrined at the top of the tumulus.
The mound is thought to be a square mound, and it was built in the middle of the 7th century. The scale is about 28m on a side, about 4.5m in height, about 1m in width, and 40-50cm in depth. The shape of the stone chamber is torso, and the back wall and ceiling stone are made of chlorite schist, and the others are made of andesite.
Root stones were placed under the back wall and side walls. As relics, a small amount of iron iron (tetsuzoku: iron arrowhead) pieces and Sue pottery pieces have been excavated from the stone chamber.
The biggest feature of this burial mound is that line engravings are drawn on the left, right and back walls, and it seems to be a person wearing an eboshi, a person pulling a bow, a horse, a waterfowl, and a house. What is drawn is drawn.
From these paintings, it is thought that the scenery of birds playing, boarding a boat, and rowing in a wide swamp was imagined, depicting the life of the person buried in this stone chamber.
