Terrain
The UK Landscape is very varied, ranging from the Grampian Mountains of Scotland to the lowland fens of England which are at or below sea level in places.
Scotland and Wales are the most mountainous parts of the UK. A ridge of hills, the Pennine, runs down the centre of northern England. Many coastal areas are low-lying, especially in the east and south of England. These include the wetlands of the Somerset levels, that regularly flood during heavy rain.
Most of the UK is made up of gently rolling hills with isolated areas of high ground such as Dartmoor in the south-west of England or the Mourne Mountains in Northern Ireland.
Water basins
Being a relatively small Island, the UK's rivers are not very long. The Severn, its longest river, is just 338 km in length, beginning in Wales and entering the Atlantic Ocean near Bristol in England. Other major rivers include the Thames, which flows through Oxford and London, and the Trent and Mersey rivers, which drain rainfall from large areas of central England.
Northern Ireland is also home to the UK's largest lake, Lough Neagh, which covers an area of 396sq.km (153 sq miles). Other major lakes include Windermere in the English Lake District and Loch Lomond in Scotland. Another of Scotland's lakes, Loch Ness is famous for sightings of 'Nessie', a mythical monster.
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