The Southern Uplands are the southernmost and least populous of mainland Scotland's three major geographic areas. The term is used both to describe the geographical region and to collectively denote the various ranges of hills within this region. The Southern Uplands lie south of the Southern Uplands Fault line that runs from Ballantrae on the Ayrshire coast northeastwards to Dunbar in East Lothian on the North Sea coast, a distance of some 220 km. In geological terms, the Southern Uplands consist mainly of Silurian deposits laid down from 400-500 million years ago and pushed up from the sea bed into an accretionary wedge by the collision of ancient continents. The majority of the rocks are weakly metamorphosed coarse greywacke. An overwhelmingly rural and mainly agricultural region, the Southern Uplands are partly forested and contain many areas of open moorland. Wikipedia [ - ]

The Southern Uplands are the southernmost and least populous of mainland Scotland's three major... [ + ]