In 1968, three large Echizen-yaki and Suzu-yaki jars which are assumed to have been buried were excavated at a site 100m southwest of Shinoridate Castle.
1968年、志苔館の南西方向100メートル地点から、埋納されたと推定される越前焼、珠洲焼の大甕3個が出土した。