The SH8679 Square Kilometre

SH8679 National Grid Square

Based in the North Wales region of Scotland.

SH8679 is within the post town of Colwyn Bay, Denbighshire.

The square is within Conwy - Conwy council.

The Point of Origin (0,0) is 474.80 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for SH8679

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Map Series	link	Ordnance Survey
Explorer 1:25,000 ol17 Snowdon & Conwy Valley	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 SH8679 and the vertical and horizontal line divides the square into four quadrants

Dividing the SH8679 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 , 86 and 79

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 + 86 + 3 + 79 + 5 would give you the six figure grid reference of SH863795

SH	86		79
SH	86	3	79	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	53.295670	-3.712247	286000	379000
South East Corner	53.295670	-3.696891	287000	379000
North West Corner	53.304869	-3.712247	286000	380000
North East Corner	53.304869	-3.696891	287000	380000