An early mound at Ama Goshono-cho in Takatsuki. Takatsuki City materials differ on its date: the local-history column in Koho Takatsuki (December 2014) and the city's historical timeline (about 250) give the mid-3rd century, while Koho Takatsuki (October 2025) gives around the late 3rd century. Its Seiryu 3 mirror is famous, but whether it was among those presented to Himiko is unproven.
Finds & research
Finds include five bronze mirrors, glass beads, and iron weapons and tools. One is a TLV-type mirror inscribed Seiryu 3 (235), and two are triangular-rimmed mirrors with four deities and four beasts. The assemblage is an Important Cultural Property.
Official status & archaeological view
Official status
The mound itself is not a National Historic Site, but its assemblage of finds is designated an Important Cultural Property. Takatsuki City has reconstructed and opened it as Seiryu Sannen no Oka.
Archaeological view
A rectangular mound measuring 18m east–west by 21m north–south on the middle slope of Mount Ama. The five bronze mirrors and other finds came from the central wooden coffin. Only one mirror, a TLV-type mirror, bears the inscription Seiryu 3 (235).
Field notes
The reconstructed mound is open free of charge within Takatsuki Municipal Cemetery. Follow the cemetery's current opening information.