These areas had developed the tatara iron-making method in ancient times, and it was widely thought that this meant that Susano established his rule over the iron-making group by slaying Yamata no Orochi.
これらの地域が古代より踏鞴製鉄が盛んであったこともあいまって、オロチ退治は製鉄集団を統治したとの見方も強い。