United Kingdom

=== Topography ===
[[Geography of England|England]] accounts for 53 per cent of the UK, covering {{Convert|130395|km2|sqmi|order=flip|-1}}.<ref>{{Cite news |date=11 February 2010 |title=England&nbsp;– Profile |work=BBC News |url=http://news.bbc.co.uk/2/hi/europe/country_profiles/7327029.stm |access-date=9 October 2010 |archive-date=15 April 2018 |archive-url=https://web.archive.org/web/20180415064122/http://news.bbc.co.uk/1/hi/world/europe/country_profiles/7327029.stm |url-status=live }}</ref> Most of the country consists of lowland terrain,<ref name="Atlapedia">{{Cite web |last=Latimer Clarke Corporation Pty Ltd |title=United Kingdom – Atlapedia Online |url=http://www.atlapedia.com/online/countries/unitedki.htm |access-date=26 October 2010 |website=Atlapedia.com |archive-date=21 March 2012 |archive-url=https://web.archive.org/web/20120321191308/http://www.atlapedia.com/online/countries/unitedki.htm |url-status=live }}{{better source needed|date=July 2023}}</ref> with upland and mountainous terrain northwest of the [[Tees–Exe line]] which roughly divides the UK into lowland and upland areas. Lowland areas include [[Cornwall]], the [[New Forest]], the [[South Downs]] and the [[The Broads|Norfolk Broads]]. Upland areas include the [[Lake District]], the [[Pennines]], the [[Yorkshire Dales]], [[Exmoor]], and [[Dartmoor]]. The main rivers and estuaries are the [[River Thames|Thames]], [[River Severn|Severn]], and the [[Humber]]. England's highest mountain is [[Scafell Pike]], at {{Convert|978|m|ft|0}} in the Lake District; its largest island is the [[Isle of Wight]].

{{Multiple image|direction = vertical|image1 = Keswick Panorama - Oct 2009.jpg|width1 = 225|caption1 = The [[Skiddaw|Skiddaw massif]], [[Keswick, Cumbria|Keswick]] and [[Derwent Water]] in the [[Lake District]]|alt1 =|image2 = Quiraing Isle of Skye Pano.jpg|width2 = 225|caption2 = [[Isle of Skye|Skye]] is one of the major islands in the [[Inner Hebrides]] and part of the [[Scottish Highlands]]. }}

[[Geography of Scotland|Scotland]] accounts for 32 per cent of the UK, covering {{Convert|78772|km2|sqmi|order=flip|-1}}.<ref>{{Cite web |title=Scotland Facts |url=http://www.scotland.org/about/fact-file/index.html |archive-url=https://web.archive.org/web/20080621045248/http://www.scotland.org/about/fact-file/index.html |archive-date=21 June 2008 |access-date=16 July 2008 |publisher=Scotland Online Gateway}}</ref> This includes nearly 800 [[List of islands of Scotland|islands]],<ref>{{Cite news |last=Winter |first=Jon |date=1 June 2000 |title=The complete guide to the ... Scottish Islands |work=Independent |location=London |url=https://www.independent.co.uk/travel/uk/the-complete-guide-to-the--scottish-islands-633851.html |access-date=8 March 2015 |archive-date=2 April 2015 |archive-url=https://web.archive.org/web/20150402164423/http://www.independent.co.uk/travel/uk/the-complete-guide-to-the--scottish-islands-633851.html |url-status=live }}</ref> notably the [[Hebrides]], [[Orkney]] Islands and [[Shetland]] Islands. Scotland is the most mountainous constituent country of the UK, the [[Scottish Highlands|Highlands]] to the north and west are the more rugged region containing the majority of Scotland's mountainous land, including the [[Cairngorms]], [[Loch Lomond and The Trossachs]] and [[Ben Nevis]] which at {{Convert|1345|m|ft|0}}<ref>{{Cite web |date=18 March 2016 |title=Great Britain's tallest mountain is taller |url=https://www.ordnancesurvey.co.uk/blog/2016/03/britains-tallest-mountain-is-taller |access-date=9 September 2018 |publisher=Ordnance Survey |archive-date=9 September 2018 |archive-url=https://web.archive.org/web/20180909000504/https://www.ordnancesurvey.co.uk/blog/2016/03/britains-tallest-mountain-is-taller/ |url-status=live }}</ref> is the highest point in the British Isles.<ref>{{Cite web |title=Ben Nevis Weather |url=http://www.bennevisweather.co.uk/index.asp |archive-url=https://web.archive.org/web/20120510193022/http://www.bennevisweather.co.uk/index.asp |archive-date=10 May 2012 |access-date=26 October 2008 |publisher=Ben Nevis Weather}}</ref>

[[Geography of Wales|Wales]] accounts for less than 9 per cent of the UK, covering {{Convert|20779|km2|sqmi|order=flip|-1}}.<ref>{{Cite news |date=9 June 2010 |title=Profile: Wales |work=BBC News |url=http://news.bbc.co.uk/2/hi/europe/country_profiles/6233450.stm |access-date=7 November 2010 |archive-date=26 August 2018 |archive-url=https://web.archive.org/web/20180826085704/http://news.bbc.co.uk/2/hi/europe/country_profiles/6233450.stm |url-status=live }}</ref> Wales is mostly mountainous, though [[South Wales]] is less mountainous than [[North Wales|North]] and [[mid Wales]]. The highest mountains in Wales are in [[Snowdonia]] and include [[Snowdon]] ({{Lang-cy|Yr Wyddfa}}) which, at {{Convert|1085|m|ft|0}}, is the highest peak in Wales.<ref name="Atlapedia" /> Wales has over {{Convert|1680|mi|0|abbr=off}} of coastline including the [[Pembrokeshire Coast]].<ref name="UK coastline" /> Several islands lie off the Welsh mainland, the largest of which is [[Anglesey]] (''Ynys Môn'').

[[Geography of Ireland|Northern Ireland]], separated from Great Britain by the [[Irish Sea]] and [[North Channel (Great Britain and Ireland)|North Channel]], has an area of {{Convert|14160|km2|sqmi|order=flip|-1}} and is mostly hilly. It includes [[Lough Neagh]] which, at {{Convert|388|km2|sqmi|order=flip|0}}, is the largest lake in the British Isles by area,<ref>{{Cite web |title=Geography of Northern Ireland |url=http://cain.ulst.ac.uk/ni/geog.htm |access-date=22 May 2006 |publisher=University of Ulster |archive-date=18 January 2012 |archive-url=https://web.archive.org/web/20120118133131/http://cain.ulst.ac.uk/ni/geog.htm |url-status=live }}</ref> [[Lough Erne]] which has over 150 islands and the [[Giant's Causeway]] which is a World Heritage Site. The highest peak in Northern Ireland is [[Slieve Donard]] in the [[Mourne Mountains]] at {{Convert|852|m|ft|0}}.<ref name="Atlapedia" />