SADO  , an

island belonging to Japan, lying 32 M . W. of Niigata, on 38° N., 1380 30' E . It has a circumference of 130 m., an area of 336 sq. m. and a population of 113,000 . The port is Ebisa, on the east coast; and at a distance of 16i m., near the west coast, is the town of Aikawa, having in its vicinity gold and silver mines, for which Sado is famous . They have been worked from very early times . Sado consists of two parallel hill ranges separated by a lower isthmus; the loftiest peak is that of Kimpokuzan (3815 ft.), to the north of Aikawa .