It includes the area of the valley of the Liddel Water that extends in a south-westerly direction from the vicinity of Peel Fell to the River Esk, a distance of 21 miles (34 km).
After holding unsatisfactory talks with the local leaders, "the best of the surname men", Moray burned the farmsteads in Liddesdale, and did not leave one house standing.
Here it is said that William de Soulis, hated for oppression and cruelty, was (in 1320) boiled by his vassals in a copper cauldron, which was supported on two of the nine stones which composed the "Druidical" circle that gave the ridge its name.
The Waverley route of the North British Railway ran down the dale, and the Catrail, or Picts' Dyke, crosses its head.
James Telfer (1802–1862), the writer of ballads, who was born in the parish of Southdean (pronounced Soudan), was for several years schoolmaster of Saughtree, near the head of the valley.