The TM3859 Square Kilometre

TM3859 National Grid Square

Based in the Eastern English Region.

The TM3859 square kilometre intersects with the settlements of Gromford & Snape Watering.

TM3859 is within the post town of Saxmundham, Suffolk.

The square is within East Suffolk District council.

The Point of Origin (0,0) is 688.57 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for TM3859

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Map Series	link	Ordnance Survey
Explorer 1:25,000 212 Woodbridge and Saxmundham	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Landranger 1:50,000 156 Saxmundham	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 TM3859 and the vertical and horizontal line divides the square into four quadrants

Dividing the TM3859 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 , 38 and 59

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 + 38 + 3 + 59 + 5 would give you the six figure grid reference of TM383595

TM	38		59
TM	38	3	59	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	52.177464	1.479687	638000	259000
South East Corner	52.177464	1.494988	639000	259000
North West Corner	52.186870	1.479687	638000	260000
North East Corner	52.186870	1.494988	639000	260000