The NM4652 Square Kilometre

NM4652 National Grid Square

Based in the Highlands and Islands region of Scotland.

NM4652 is within the post town of Isle Of Mull, Argyllshire.

The square is within Argyll and Bute council.

The Point of Origin (0,0) is 766.04 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for NM4652

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Map Series	link	Ordnance Survey
Explorer 1:25,000 374 Isle of Mull North and Tobermory		Buy Direct from the Ordnance Survey
Landranger 1:50,000 47 Tobermory & North Mull		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 NM4652 and the vertical and horizontal line divides the square into four quadrants

Dividing the NM4652 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. NM , 46 and 52

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 NM + 46 + 3 + 52 + 5 would give you the six figure grid reference of NM463525

NM	46		52
NM	46	3	52	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	56.590888	-6.139797	146000	752000
South East Corner	56.590888	-6.122575	147000	752000
North West Corner	56.600389	-6.139797	146000	753000
North East Corner	56.600389	-6.122575	147000	753000