The SJ2115 Square Kilometre

SJ2115 National Grid Square

Based in the Mid and West Wales region of Scotland.

SJ2115 is within the post town of Meifod, Montgomeryshire.

The square is within Powys - Powys council.

The Point of Origin (0,0) is 449.74 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for SJ2115

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Map Series	link	Ordnance Survey
Explorer 1:25,000 239 Lake Vyrnwy and Llanfyllin, Tanat valley
Explorer 1:25,000 240 Oswestry / Croesoswallt
Landranger 1:50,000 126 Shrewsbury	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 SJ2115 and the vertical and horizontal line divides the square into four quadrants

Dividing the SJ2115 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. SJ , 21 and 15

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 SJ + 21 + 3 + 15 + 5 would give you the six figure grid reference of SJ213155

SJ	21		15
SJ	21	3	15	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	52.726866	-3.171460	321000	315000
South East Corner	52.726866	-3.156415	322000	315000
North West Corner	52.735999	-3.171460	321000	316000
North East Corner	52.735999	-3.156415	322000	316000