The TM0789 Square Kilometre

TM0789 National Grid Square

Based in the Eastern English Region.

TM0789 is within the post towns of Attleborough, Norfolk & Norwich, Norfolk.

The square is within Breckland District council.

The Point of Origin (0,0) is 672.29 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for TM0789

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Map Series	link	Ordnance Survey
Explorer 1:25,000 237 Norwich	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Landranger 1:50,000 144 Thetford & Breckland	Shop for this map on amazon.co.uk

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 TM0789 and the vertical and horizontal line divides the square into four quadrants

Dividing the TM0789 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. TM , 07 and 89

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 TM + 07 + 3 + 89 + 5 would give you the six figure grid reference of TM073895

TM	07		89
TM	07	3	89	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	52.459339	1.045452	607000	289000
South East Corner	52.459339	1.060772	608000	289000
North West Corner	52.468696	1.045452	607000	290000
North East Corner	52.468696	1.060772	608000	290000