Shropshire Hills, Yorkshire Wolds Northern Ireland: Mourne Mountains, Antrim Plateau, Sperrin Mountains The lowest point of the UK is in the Fens of East Anglia, in England, parts of which lie up to below sea level. Rivers and lakes Main articles List of lakes and lochs in the United Kingdom; List of rivers of the United Kingdom; List of waterfalls of the United Kingdom. The longest river in the UK is the River Severn () which flows through both Wales and England. The longest rivers in the UK contained fully within each of its constituent nations are: England: River Thames () Scotland: River Tay () N. Ireland: River Bann () Wales: River Usk () The largest lakes (by surface area) in the UK by country are: N. Ireland: Lough Neagh () Scotland: Loch Lomond () England: Windermere () Wales: Bala Lake (Llyn Tegid) () The deepest lake in the UK is Loch Morar with a maximum depth of ; Loch Ness is second at deep. The deepest lake in England is Wastwater which achieves a depth of . Loch Ness is the UK's largest lake in terms of volume. Artificial waterways Main articles: Waterways in the United Kingdom, Canals of Great Britain, Dams and reservoirs in United Kingdom As a result of its industrial history, the United Kingdom has an extensive system of canals, mostly built in the early years of the Industrial Revolution, before the rise of competition from the railways. The United Kingdom also has numerous dams and reservoirs to store water for drinking and industry. The generation of hydroelectric power is rather limited, supplying less than 2% of British electricity, mainly from the Scottish Highlands. Coastline The UK has a coastline which measures about . The heavy indentation of the coastline helps to ensure that no location is more than from tidal waters. The UK claims jurisdiction over the continental shelf, as defined in continental shelf orders or in accordance with agreed upon boundaries, an exclusive fishing zone of , and territorial sea of . The UK has an Exclusive Economic Zone of in Europe. However, if all crown dependencies and overseas territories are included then the total EEZ is which is the 6th largest in the world. Inlets Cardigan Bay Lyme Bay Bristol Channel Thames Estuary Morecambe Bay Solway Firth The Wash Humber Estuary Firth of Forth Firth of Tay Moray Firth Firth of Clyde Firth