River Esk, Dumfries and Galloway River Esk, Dumfries and Galloway The River Esk (), also called the Border Esk, is a river in Dumfries and Galloway, Scotland, that flows into the Solway Firth. It also flows for a small way through the English county of Cumbria before entering the Solway. The river rises in the hills to the east of Moffat and its two main tributaries, the Black Esk and the White Esk, merge at the southern end of Castle O'er Forest. It flows south east through Eskdale past Langholm before merging with Liddel Water (which defines the border between Scotland and England. Before passing
Dumfries and Galloway united Sheriffdom under that name. Dumfries and Galloway covers the majority of the Western area of the Southern Uplands, it also hosts Scotland's most Southerly point, at the Mull of Galloway in the west of the region. The region has a number of south running water systems which break through the Southern Uplands creating the main road, and rail, arteries north/south through the region and breaking the hills up into a number of ranges. The A701 branches off the M74 at Beattock, goes through the town of Moffat, climbs to Annanhead above the Devil's Beef Tub (at the source of