Many remains related to kanga (government office) have been found by findings of excaveted remains such as massive building construction ruins, an ink writing earthenware and Saishi (religious service) vestige which related to kanga facilities.
官衙施設に関係する大型建築跡や墨書土器、祭祀遺物などの出土遺物により、多数の官衙関係遺跡が発見されている。