Etymology and distribution of 丹羽瀬.

Niwase 【丹羽瀬】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Yamagata-ken Tsuruoka-shi , Hokkaidou . There is a 平 surname. Tell Yamagata-ken Tsuruoka-shi that it was called from the Edo period. 平 Taira reference.