The NM3741 Square Kilometre

NM3741 National Grid Square

Based in the Highlands and Islands region of Scotland.

NM3741 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 753.56 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for NM3741

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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
Landranger 1:50,000 48 Iona, Ulva & west Mull

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 NM3741 and the vertical and horizontal line divides the square into four quadrants

Dividing the NM3741 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 , 37 and 41

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 + 37 + 3 + 41 + 5 would give you the six figure grid reference of NM373415

NM	37		41
NM	37	3	41	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	56.487384	-6.274826	137000	741000
South East Corner	56.487384	-6.257623	138000	741000
North West Corner	56.496900	-6.274826	137000	742000
North East Corner	56.496900	-6.257623	138000	742000