Sado Island is an island located in the eastern part of the Sea of Japan, under the jurisdiction of Sado City, Niigata Prefecture, Japan, with a coastline of 262.7 kilometres. In October 2017, Sado Is

National Route 350 is a national highway of Japan that traverses the prefecture of Niigata in a southwest–northeast routing. It connects the city of Jōetsu in southern Niigata Prefecture to the prefec