The SO3746 Square Kilometre

SO3746 National Grid Square

Based in the West Midlands English Region.

SO3746 is within the post town of Hereford, Herefordshire.

The square is within County of Herefordshire council.

The Point of Origin (0,0) is 417.23 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for SO3746

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Map Series	link	Ordnance Survey
Explorer 1:25,000 201 Knighton and Presteigne Tref-y-clawdd a Dyffryn Elan
Landranger 1:50,000 148 Presteigne & Hay-on-Wye	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Landranger 1:50,000 149 Hereford & Leominster	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 SO3746 and the vertical and horizontal line divides the square into four quadrants

Dividing the SO3746 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. SO , 37 and 46

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 SO + 37 + 3 + 46 + 5 would give you the six figure grid reference of SO373465

SO	37		46
SO	37	3	46	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	52.108732	-2.921507	337000	246000
South East Corner	52.108732	-2.906722	338000	246000
North West Corner	52.117835	-2.921507	337000	247000
North East Corner	52.117835	-2.906722	338000	247000