SADO, an island belonging to Japan, lying 32 m. W. of Niigata, on 38 N., 138 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 i6| 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.
Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)