The SS7913 Square Kilometre

SS7913 National Grid Square

Based in the South West English Region.

The SS7913 square kilometre intersects with the settlement of Witheridge.

SS7913 is within the post towns of Crediton, Devon & Tiverton, Devon.

The square is within Mid Devon District & North Devon District councils.

The Point of Origin (0,0) is 301.01 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for SS7913

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Map Series	link	Ordnance Survey
Explorer 1:25,000 127 South Molton and Chulmleigh	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Explorer 1:25,000 114 Exeter and the Exe Valley	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Explorer 1:25,000 114 Exeter and the Exe Valley	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Landranger 1:50,000 180 Barnstaple and Ilfracombe	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Landranger 1:50,000 181 Minehead & Brendon Hills	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 SS7913 and the vertical and horizontal line divides the square into four quadrants

Dividing the SS7913 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. SS , 79 and 13

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 SS + 79 + 3 + 13 + 5 would give you the six figure grid reference of SS793135

SS	79		13
SS	79	3	13	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	50.903749	-3.722560	279000	113000
South East Corner	50.903749	-3.708013	280000	113000
North West Corner	50.912947	-3.722560	279000	114000
North East Corner	50.912947	-3.708013	280000	114000