Southern Uplands

One of the three geographical divisions of Scotland, being most of the hilly Scottish borderland to the south of a geological fault line that stretches from Dunbar, East Lothian, on the North Sea to Girvan, South Ayrshire, on the Firth of Clyde. The Southern Uplands, largely formed by rocks of the Silurian and Ordovician age, are intersected by the broad valleys of the Nith and Tweed rivers.