Scottish watershed

The first miles of the Tweed further upriver than the burn that carries the name Tweed, this is a confluence of the Powskein and Whitehope Burns. The Whitehope Burn is probably the branch of the system furthest from Berwick. The hill is Chalk Rig and it carries the Dumfriesshire/Peeblesshire march and the East-West watershed of Scotland.

The Scottish watershed is the drainage divide in Scotland that separates river systems that flow to the east into the North Sea from those that flow to the west into the Atlantic Ocean. On the summit of Ben Lomond for example, looking west all water flows to the Firth of Clyde, and looking east all water flows into the Firth of Forth.

Although the concept of geographical watersheds is common, the first reference to the Scottish watershed is to be found in Groome's Ordnance Gazetteer of 1884, in which the entry defines the northern terminus as being at Duncansby Head. This was followed in 1912 with the Bartholomew Atlas Survey (NLS) which shows the entire geographic feature, from the border with England to Duncansby Head. The first popular delineation of the Scottish watershed took place as recently as 1986. It was mapped out in that year by Dave Hewitt, who in 1987 then walked the line of the watershed from south to north.[1] The Royal Scottish Geographical Society (RSGS) reviewed Wright`s `Ribbon of Wildness` in 2011, and in acknowledging the significance of the route, stated that "Ribbon of Wildness gives a vivid introduction to this hitherto largely unknown geographic feature". Seven people have done versions of the route:

References

  1. Hewitt, Dave (1988) Walking the Watershed' 'Glasgow: TACit Press.
  2. Wright, Peter. (2010) Ribbon of Wildness – Discovering the Watershed of Scotland. Luath Press.

https://en.wikipedia.org/wiki/Geography_of_the_North_Sea

External links