The Oaza Utano was reorganized into ten towns which were prefixed by the name of 'Utano,' twenty-four towns which were prefixed by the name of 'Narutaki,' five towns which were prefixed by the name of 'Yamagoe,' and Ondoyama Yamanochaya-cho.
大字宇多野は「宇多野」を冠称する10町、「鳴滝」を冠称する24町、「山越」を冠称する5町、及び音戸山山ノ茶屋町に編成された。