The SH9980 Square Kilometre

SH9980 National Grid Square

Based in the North Wales region of Scotland.

The SH9980 square kilometre intersects with the settlements of Kinmel Bay & Rhyl.

SH9980 is within the post town of Rhyl, Flintshire.

The square is within Conwy - Conwy & Sir Ddinbych - Denbighshire councils.

The Point of Origin (0,0) is 483.53 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for SH9980

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Map Series	link	Ordnance Survey
Explorer 1:25,000 264 Vale of Clwyd, Rhyl, Denbigh and Ruthin	Shop for this map on amazon.co.uk
Landranger 1:50,000 116 Denbigh & Colwyn Bay	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey

This extract is taken from the Ordnance Survey six-inch to the mile series surveyed from 1888-1913. The scale is 1:10,560.

The Square overlayed over the map represents the extent of SH9980 and the vertical and horizontal line divides the square into four quadrants

Dividing the SH9980 Square to get a six figure Grid Reference

A helpful reminder for calculating grid references is across the landing and up the stairs.

For example if your house was located in a square that in the fourth square across and sixth square up and you wanted to work out its six figure grid refence.

First, You would divide the four figure grid reference into three parts. SH , 99 and 80

Count across starting with zero. This would give you three. Make a note that X for Across (A Cross) = 3.

Count up starting with zero. This would give you five. Make a note that Y = 5.

So to put it together SH + 99 + 3 + 80 + 5 would give you the six figure grid reference of SH993805

SH	99		80
SH	99	3	80	5

A six figure grid reference would be accurate to 10 metres. To achieve a greater level of accuracy this 10 metre square would be divided into a grid 10 by 10 and the process repeated.

This would produce an 8 figure grid reference that would be accurate to a square metre!

Corner	Latitude	Longitude	Easting	Northing
South West Corner	53.307296	-3.517555	299000	380000
South East Corner	53.307296	-3.502234	300000	380000
North West Corner	53.316472	-3.517555	299000	381000
North East Corner	53.316472	-3.502234	300000	381000