The NN4994 Square Kilometre

NN4994 National Grid Square

Based in the Highlands and Islands region of Scotland.

NN4994 is within the post town of Newtonmore, Inverness-shire.

The square is within Highland council.

The Point of Origin (0,0) is 832.13 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for NN4994

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Map Series	link	Ordnance Survey
Explorer 1:25,000 ol55 Loch Laggan & Creag Meagaidh, Corrieyairack Pass	Shop for this map on amazon.co.uk
Landranger 1:50,000 35 Kingussie
Landranger 1:50,000 34 Fort Augustus & Glen Albyn

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 NN4994 and the vertical and horizontal line divides the square into four quadrants

Dividing the NN4994 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. NN , 49 and 94

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 NN + 49 + 3 + 94 + 5 would give you the six figure grid reference of NN493945

NN	49		94
NN	49	3	94	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	57.012344	-4.488974	249000	794000
South East Corner	57.012344	-4.471923	250000	794000
North West Corner	57.021645	-4.488974	249000	795000
North East Corner	57.021645	-4.471923	250000	795000