Joganjiyama Kofun

Period: Mid 5th century
Mounded tomb shape: Square mounded tomb
Length of each side of the mound: 67 m
　　　　　　　　　　　　　　　　　Two-tiered

It is believed that this mounded tomb is deeply connected with Hakayama Mounded Tomb, a keyhole mounded tomb located on the east side.
On the south side of this mounded tomb, Nishihakayama Mounded Tomb, a square mounded tomb with each side being about 20 m, has been discovered, where many iron implements have been excavated.