The NT9138 Square Kilometre

NT9138 National Grid Square

Based in the North East English Region.

The NT9138 square kilometre intersects with the settlement of Crookham.

NT9138 is within the post town of Mindrum, Northumberland.

The square is within Northumberland council.

The Point of Origin (0,0) is 748.28 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for NT9138

If you purchase a map through the links below, we may earn an affiliate commission.

Map Series	link	Ordnance Survey
Explorer 1:25,000 339 Kelso, Coldstream and Lower Tweed Valley		Buy Direct from the Ordnance Survey
Landranger 1:50,000 74 Kelso	Shop for this map on amazon.co.uk
Landranger 1:50,000 75 Berwick-upon-Tweed	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 NT9138 and the vertical and horizontal line divides the square into four quadrants

Dividing the NT9138 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. NT , 91 and 38

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 NT + 91 + 3 + 38 + 5 would give you the six figure grid reference of NT913385

NT	91		38
NT	91	3	38	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	55.635474	-2.144562	391000	638000
South East Corner	55.635474	-2.128645	392000	638000
North West Corner	55.644477	-2.144562	391000	639000
North East Corner	55.644477	-2.128645	392000	639000