In the era after WWII when the Japanese economy grew rapidly, the area of former Yamashiro Province, occupying part of the Kinai region, developed quickly, but the northern area, connecting the Hokuriku region and the Sanin region, tended to be ignored, though the area is located in an important position on the Japan Sea side.
第二次世界大戦後の経済成長において、畿内の一角に当たる旧山城国はいち早く発展したのに対して、北陸地方と山陰地方を結ぶ北部は、日本海側の要衝であるにも拘らず軽視される傾向にあった。