Northern England cities like Manchester and Leeds, nor the majority of Yorkshire. Northern England is not a homogenous unit, and some have entirely rejected the idea that the North exists as a coherent entity, claiming that considerable cultural differences across the area overwhelm any similarities. Through the North of England run the Pennines, an upland chain, often referred to as "the backbone of England", which stretches from the Tyne Gap to the Peak District. Other uplands in the North include the Lake District with England's highest mountains, the Cheviot Hills adjoining the border with Scotland, and the North York Moors near the
Drainage divide a sufficient water supply. Important examples are the Chicago Portage, connecting the Great Lakes and Mississippi by the Chicago Sanitary and Ship Canal, and the Canal des Deux Mers in France, connecting the Atlantic and the Mediterranean. Categories: Drainage divide A drainage divide, water divide, divide, ridgeline, watershed, or water parting is the line that separates neighbouring drainage basins. On rugged land, the divide lies along topographical ridges, and may be in the form of a single range of hills or mountains, known as a dividing range. On flat terrain, especially where the ground is marshy, the divide may be