The NB3610 Square Kilometre

NB3610 National Grid Square

Based in the Highlands and Islands region of Scotland.

NB3610 is within the post town of Isle Of Lewis, Ross-shire.

The square is within Na h-Eileanan an Iar council.

The Point of Origin (0,0) is 920.11 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for NB3610

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Map Series	link	Ordnance Survey
Explorer 1:25,000 457 South East Lewis/Taobh an Eardheas Leodhais
Landranger 1:50,000 14 Tarbert & Loch Seaforth	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 NB3610 and the vertical and horizontal line divides the square into four quadrants

Dividing the NB3610 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. NB , 36 and 10

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 NB + 36 + 3 + 10 + 5 would give you the six figure grid reference of NB363105

NB	36		10
NB	36	3	10	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	58.000486	-6.471027	136000	910000
South East Corner	58.000486	-6.453042	137000	910000
North West Corner	58.010033	-6.471027	136000	911000
North East Corner	58.010033	-6.453042	137000	911000