Following items were excavated from the site of Saishi facilities in the back square part: Fragments of Hekigyoku (jasper) stone wristbands which are called Ishikushiro (stone bracelet), Sharinseki (carved stone objects with smooth radial fluting), and Kuwagata-ishi (hoe-shaped bracelets), fragments of clay artifacts copied from those three kinds of Hekigyoku products, Kudatama made of Hekigyoku, fragments of iron swords and Tosu (small knife), iron axes, relics called ancestral tablets shaped stone products which are presumed to be sample dolls' wreck, and Haji potteries including Takatsuki (small one-legged tray for one person) and jars.
後方部の祭祀状遺構で、石釧（いしくしろ）、車輪石、鍬形石、石製釧と呼ばれる碧玉製腕飾類の破片、それら三種の碧玉製品を模造した土製品の破片、碧玉の管玉、鉄剣・刀子の破片と鉄斧、位牌形石製品とよばれ、人形の形骸化したい試製品と想像される遺物、高坏や壺などの土師器が出土した。