The Scottish Highlands has a population density of 9/km2 (23 /sq mi), compared to London at 5,206/km2 (13,466/sq mi) and New York has 27,550/sq mi (10,640/km2).

There is nothing much in terms of population north of Dundee and is probably one of the larger areas of Europe for wilderness area (if measured in population densities).

I can't really see the great hordes of Londoners heading for the wilds of the Scottish Highlands and the unknown badland territories north of the Watford gap! Many of them also think that England ends along the Great Glen and then Scotland Starts at on the other side of Loch Ness..