[4] It was the first Kofun excavated from Makimuku ruins,[5]: 115  and was where some of the earliest Haji pottery was found.

[10][3] Wooden roosters painted in vermilion lacquer were discovered in the moat surrounding the mound's circular section.

[2]: 250  Historians and archaeologists believe these roosters might have been part of ceremonies aimed at praying for the resurrection of the deceased.

Similar wooden and clay figures resembling roosters have been found in other early Kofun period tombs.

These items were found in peat at the Ikegami-sone site in Izumi City, Osaka.

[12][13]: 22  The tomb's direction shows that the Makimuku area's rulers and people respected Mount Miwa deeply.