There are 43 ancient tombs now.
24 tombs of them are located in the west position.
There is the No.1 tomb nearby Honjyo hamlet
where is located in the southern curved area of Mt.Yakuyama.
It is an ancient burial mound , square at the head and rounded at the foot. Its length is 32 meters.
There were some mirrors, swords, axes, glass beads, etc. in it.