​MOUNT BARKER, a town of Hindmarsh county, South Australia, at the foot of the mountain of the same name, 341/2 m. by rail E. of Adelaide. It has an extremely fine climate and is much frequented as a health resort in summer. It is the centre of a populous and fertile district producing quantities of fruit, wheat and dairy produce; important cattle sales are held weekly, and there are several engineering works, flour mills and tanneries in the town, which also is the seat of a wattle-bark industry. Pop. about 2000; but the inhabitants of the Mount Barker district number over 34,000.