In addition, reports made by a TV program 'Onozawa Yuko no iki-iki wide' broadcast on Niigata Television Network 21, Inc. also suggested that the boundary is in Toyama Prefecture.
また、新潟テレビ21「小野沢裕子のいきいきワイド」取材に基づく事等から、富山県内が分岐点と考えられる。