The NH0183 Square Kilometre

NH0183 National Grid Square

Based in the Highlands and Islands region of Scotland.

NH0183 is within the post towns of Achnasheen, Ross-shire & Garve, Ross-shire.

The square is within Highland council.

The Point of Origin (0,0) is 905.59 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for NH0183

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Map Series	link	Ordnance Survey
Explorer 1:25,000 435 An Teallach and Slioch		Buy Direct from the Ordnance Survey
Landranger 1:50,000 19 Gairloch & Ullapool	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 NH0183 and the vertical and horizontal line divides the square into four quadrants

Dividing the NH0183 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. NH , 01 and 83

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 NH + 01 + 3 + 83 + 5 would give you the six figure grid reference of NH013835

NH	01		83
NH	01	3	83	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	57.792265	-5.350513	201000	883000
South East Corner	57.792265	-5.332889	202000	883000
North West Corner	57.801675	-5.350513	201000	884000
North East Corner	57.801675	-5.332889	202000	884000