The SE9966 Square Kilometre

SE9966 National Grid Square

Based in the Yorkshire and the Humber English Region.

SE9966 is within the post town of Driffield, Yorkshire.

The square is within East Riding of Yorkshire council.

The Point of Origin (0,0) is 682.76 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for SE9966

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Map Series	link	Ordnance Survey
Explorer 1:25,000 295 Bridlington, Driffield & Hornsea	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Explorer 1:25,000 300 Howardian Hills and Malton	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Explorer 1:25,000 301 Scarborough, Bridlington and Flamborough Head	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Landranger 1:50,000 101 Scarborough	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 SE9966 and the vertical and horizontal line divides the square into four quadrants

Dividing the SE9966 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. SE , 99 and 66

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 SE + 99 + 3 + 66 + 5 would give you the six figure grid reference of SE993665

SE	99		66
SE	99	3	66	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	54.080239	-0.488270	499000	466000
South East Corner	54.080239	-0.472661	500000	466000
North West Corner	54.089416	-0.488270	499000	467000
North East Corner	54.089416	-0.472661	500000	467000