The SK4558 Square Kilometre

SK4558 National Grid Square

Based in the East Midlands English Region.

The SK4558 square kilometre intersects with the settlement of Hilcote.

SK4558 is within the post towns of Alfreton, Derbyshire & Sutton-in-ashfield, Nottinghamshire.

The square is within Ashfield District & Bolsover District councils.

The Point of Origin (0,0) is 571.13 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for SK4558

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Map Series	link	Ordnance Survey
Explorer 1:25,000 269 Chesterfield and Alfreton	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Landranger 1:50,000 120 Mansfield & Worksop	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 SK4558 and the vertical and horizontal line divides the square into four quadrants

Dividing the SK4558 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. SK , 45 and 58

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 SK + 45 + 3 + 58 + 5 would give you the six figure grid reference of SK453585

SK	45		58
SK	45	3	58	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	53.117222	-1.329107	445000	358000
South East Corner	53.117222	-1.314024	446000	358000
North West Corner	53.126295	-1.329107	445000	359000
North East Corner	53.126295	-1.314024	446000	359000