The SD9875 Square Kilometre

SD9875 National Grid Square

Based in the Yorkshire and the Humber English Region.

SD9875 is within the post towns of Leyburn, Yorkshire & Skipton, Yorkshire.

The square is within Craven District & Richmondshire District councils.

The Point of Origin (0,0) is 619.70 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for SD9875

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Map Series	link	Ordnance Survey
Explorer 1:25,000 ol30 Yorkshire Dales Northern & Central	Shop for this map on amazon.co.uk
Landranger 1:50,000 98 Wensleydale & Wharfedale	Shop for this map on amazon.co.uk

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 SD9875 and the vertical and horizontal line divides the square into four quadrants

Dividing the SD9875 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. SD , 98 and 75

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 SD + 98 + 3 + 75 + 5 would give you the six figure grid reference of SD983755

SD	98		75
SD	98	3	75	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	54.170802	-2.032144	398000	475000
South East Corner	54.170802	-2.016819	399000	475000
North West Corner	54.179793	-2.032144	398000	476000
North East Corner	54.179793	-2.016819	399000	476000