Yamanoue Kofun is a square mound of the late Kofun period in Maebashi, an important vestige where the characteristics of ancient eastern Japan culture are strongly evident in the stone chamber construction. Estimated to have been built around the mid-7th century, it has a horizontal stone chamber. The Soja Kofun group in the Maebashi area is centrally located here, known as a burial zone built by …

Square mound built in the mid-7th century. Preserved together with Hotoyama and Jabukuriyama kofun as one of the Soja Kofun group. Known for the precise stone-working technology of the horizontal stone chamber. Designated National Historic Site. An important site of ancient eastern Japan culture.