A keyhole-shaped mound formerly located in Okamoto 1-chome (formerly Motoyama-cho), Higashinada-ku, Kobe, Hyogo Prefecture. Most of the mound was leveled for residential development, though a trace of its southern foot survives. A Meiji-era excavation of the pit-style stone chamber in its rear circular section yielded six bronze mirrors, a stone bracelet and other items, now held by the Tokyo National Museum.
Finds & research
According to Tokyo National Museum holdings, six bronze mirrors were recovered, including a triangular-rimmed mirror with an arabesque band and three deities and two beasts, a triangular-rimmed mirror with two deities and two beasts, a slant-rimmed mirror with two deities and two beasts, a mirror with a pictorial band and ring-shaped bosses, and a stylized-phoenix mirror, together with a stone bracelet (8.2cm in diameter).
Archaeological view
According to the Comprehensive Database of Archaeological Site Reports maintained by the Nara National Research Institute for Cultural Properties, it was a keyhole mound about 64m long, with a rear circular section about 31m in diameter (about 3.6m high) and a front section about 33m long, on a fan-shaped terrace at about 25m elevation. It is attributed to the Early Kofun period and had a pit-style stone chamber.
Field notes
Most of the mound no longer survives, having become residential land; only a slight trace remains at its southern foot. The pin marks an approximate point within the former location (Okamoto 1-chome).