The SH8733 Square Kilometre

SH8733 National Grid Square

Based in the Mid and West Wales region of Scotland.

SH8733 is within the post town of Bala, Merioneth.

The square is within Gwynedd - Gwynedd council.

The Point of Origin (0,0) is 439.61 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for SH8733

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Map Series	link	Ordnance Survey
Explorer 1:25,000 ol18 Harlech, Porthmadog & Bala	Shop for this map on amazon.co.uk
Explorer 1:25,000 ol23 Cadair Idris & Llyn Tegid	Shop for this map on amazon.co.uk
Landranger 1:50,000 124 Dolgellau	Shop for this map on amazon.co.uk
Landranger 1:50,000 125 Bala & Lake Vyrnwy	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 SH8733 and the vertical and horizontal line divides the square into four quadrants

Dividing the SH8733 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. SH , 87 and 33

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 SH + 87 + 3 + 33 + 5 would give you the six figure grid reference of SH873335

SH	87		33
SH	87	3	33	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	52.882567	-3.681053	287000	333000
South East Corner	52.882567	-3.665852	288000	333000
North West Corner	52.891762	-3.681053	287000	334000
North East Corner	52.891762	-3.665852	288000	334000