The TL4479 Square Kilometre

TL4479 National Grid Square

Based in the Eastern English Region.

The TL4479 square kilometre intersects with the settlement of Sutton.

TL4479 is within the post town of Ely, Cambridgeshire.

The square is within East Cambridgeshire District council.

The Point of Origin (0,0) is 611.37 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for TL4479

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Map Series	link	Ordnance Survey
Explorer 1:25,000 225 Huntingdon and St.Ives, Grafham water	Shop for this map on amazon.co.uk
Explorer 1:25,000 228 March and Ely	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Explorer 1:25,000 227 Peterborough	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Landranger 1:50,000 142 Peterborough	Shop for this map on amazon.co.uk
Landranger 1:50,000 143 Ely & Wisbech	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 TL4479 and the vertical and horizontal line divides the square into four quadrants

Dividing the TL4479 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. TL , 44 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 TL + 44 + 3 + 79 + 5 would give you the six figure grid reference of TL443795

TL	44		79
TL	44	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	52.389845	0.114681	544000	279000
South East Corner	52.389845	0.129798	545000	279000
North West Corner	52.399093	0.114681	544000	280000
North East Corner	52.399093	0.129798	545000	280000