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Centre points of the United Kingdom

Summary

There has long been debate over the exact location of the geographical centre of the United Kingdom, and its constituent countries, due to the complexity and method of the calculation, such as whether to include offshore islands, and the fact that erosion will cause the position to change over time. There are two main methods of calculating this "centre": either as the centroid of the two-dimensional shape made by the country (projected to the Airy ellipsoid then flattened using the Transverse Mercator projection), or as the point farthest from the boundary of the country (either the sea, or, in the case of constituent countries, a land border). These two methods give quite different answers.

This stake is one of several way markers that mark the location of variously calculated geographic centres of Britain.[citation needed] It is located just to the west of Whitendale Hanging Stones in Lancashire at SD 64188 56541.
"Centrographers" at the centre of mainland Great Britain, in a field near Whalley, Lancashire at Grid Ref SD 72321.72 36671.1 (approximately), in December 2005

Traditional locations edit

The town of Haltwhistle in Northumberland has banners stating that it is the "Centre of Britain".[1] By another calculation the centre can also be said to be Dunsop Bridge, Lancashire, 71 miles (114 km) to the south.[2]

However, in 2002 the Ordnance Survey conducted studies that pinpointed the respective centres more precisely, and it is their results that are quoted below.[3]

Centroid locations edit

 
 
 
 
 
 
5
 
 
 
 
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Map of centres
  1. Whitendale Hanging Stones
  2. Morecambe Bay
  3. Calderstones
  4. Lindley Hall Farm
  5. Annaghone
  6. Near Blair Atholl
  7. Cwmystwyth
  8. Church Flatts Farm
  9. Near Hammerwich

The centroid is a mathematically derived point that is in every sense the centre of a two dimensional area like a piece of land. If a straight line is drawn through a centroid in any direction there will be equal length of the line on either side of the centroid as measured from it to the boundary if the line is unbroken on either side. If a line crosses an inlet of the sea then it can be considered as a stick of uniform weight with a material of negligible weight crossing the water, the line would then balance precisely at the centroid point if suspended.

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Map of centres of the UK and Great Britain
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Map of centres of UK and England by various methods

Put simply, the centroid is the point at which a cardboard cut-out of the area could be perfectly balanced on the tip of a pencil.[4] Islands are assumed fixed to the mainland in their precise position by invisible rigid weightless wires. A mathematical method is used to do the balancing to a much greater accuracy than the practical method could achieve.

Unless stated, positions are the centroids of the two-dimensional shapes made by the countries. Calculations include offshore islands unless stated.

United Kingdom edit

Great Britain edit

  • Whitendale Hanging Stones (#1 on the map), near Brennand Farm, outside Dunsop Bridge, Lancashire in the Forest of Bowland.(54°0′13.176″N 2°32′52.278″W / 54.00366000°N 2.54785500°W / 54.00366000; -2.54785500 (Centre of Great Britain); grid reference SD6418856541) [2]

Great Britain (mainland only) edit

England edit

  • Lindley Hall Farm (#4), Leicestershire (near Fenny Drayton and Higham on the Hill) (52°33′42.942″N 1°27′53.474″W / 52.56192833°N 1.46485389°W / 52.56192833; -1.46485389 (Centre of England); SP 36373.66 96143.05) [7] A plaque denoting this point, and disputing the "traditional" centre of England as being at Meriden in the West Midlands, was erected by Ordnance Survey on 14 June 2013 [8]

Northern Ireland edit

  • Annaghone (#5), near Cookstown, County Tyrone (54°36′27.277″N 6°41′35.323″W / 54.60757694°N 6.69314528°W / 54.60757694; -6.69314528 (Centre of Northern Ireland) [9] grid reference NV9706433729 ) Irish grid ref H 84494 74047.

Scotland edit

Wales edit

Locations found by other methods edit

Point farthest from the sea

Point farthest from high tide mark (including tidal rivers)

  • Between Hammerwich and Wall, south-west of Lichfield, Staffordshire (52°40′N 1°51′W / 52.66°N 1.85°W / 52.66; -1.85 (Point farthest from high tide mark);)[citation needed]

Mid point of the longest north–south axis

  • Haltwhistle, Northumberland. The midpoint of the longest north–south meridian; also approximately the midpoint of each of the lines through it across Great Britain along the 16 main compass directions.[11]

Centre of population

  • This calculation depends on the method used (mean, median or geometric median; see Centre of population for details).
A calculation by Danny Dorling using the mean (least squares) method based on local authority district data from the 1990s gave the population centre of Great Britain at Appleby Parva, Leicestershire, 20 miles south of Derby. Since then, the population centre will have moved slightly south and east.[12][13]>[14]

Centre of England

 
Plaque on the ancient cross at Meriden, West Midlands, the traditional centre of England
 
Road sign welcoming visitors to the Centre of England at Morton, Derbyshire

For centuries the parish of Meriden to the west of Coventry has claimed to be the geographical centre of England, and there has been a stone cross there commemorating the claim for at least 500 years. The justification is that the point farthest from the sea is in the parish.[citation needed] Morton, Derbyshire also claims to be the centre of England as it is not only midway along England's longest north-south axis,[citation needed] but also midway between the east coast and the Welsh border.[citation needed] Claims are also made for a tree, the Midland Oak, in Leamington Spa, Warwickshire, although the basis for these claims is not clear.

See also edit

Further reading edit

  • John Michell (2009). Sacred Center: the Ancient Art of Locating Sanctuaries. Inner Traditions. ISBN 1594772843.

References edit

  1. ^ Vanessa Barford (22 August 2014). "Scottish independence: The town at the centre of Britain". BBC News. Retrieved 20 November 2015.
  2. ^ a b c Brady Haran (20 October 2002). "Stuck in the middle with ewe". BBC News. Retrieved 2 January 2010.
  3. ^ Social Media Manager, Gemma (22 August 2014). "Where is the centre of Great Britain?". The Official OS Blog. OS. Retrieved 20 May 2017.
  4. ^ a b "Brave hearts of Scotland". BBC. 2002-10-24. Retrieved 2010-01-02.
  5. ^ BBC News (calculation made by Ordnance Survey) 16 September 2014
  6. ^ "Q. Where is the centre of mainland Great Britain?". MapZone. Ordnance Survey. Retrieved 23 November 2011.
  7. ^ "A tale of two centres". BBC. 2002-10-22. Retrieved 2010-01-02.
  8. ^ "New centre of England marked in Fenny Drayton". BBC. 2013-06-14. Retrieved 2013-06-14.
  9. ^ "Meg in the middle". BBC. 2002-10-23. Retrieved 2010-01-02.
  10. ^ "Saving the centre of Wales". BBC. 2002-10-24. Retrieved 2010-01-02.
  11. ^ The Centre of Britain Archived January 29, 2012, at the Wayback Machine, Centre of Britain Hotel, Haltwhistle, Northumberland. Accessed May 2012
  12. ^ "News Item:". University of Leeds. Archived from the original on 3 October 2006. Retrieved 25 November 2007.
  13. ^ "Population Centre". Appleby Magna & Appleby Parva. Archived from the original on 23 November 2007. Retrieved 25 November 2007.
  14. ^ Dorling, D; Atkins, D J (1995). Population density, change and concentration in Great Britain 1971, 1981 and 1991 (Studies on Medical and Population Subjects No. 58). HMSO.

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