The SH8729 Square Kilometre

SH8729 National Grid Square

Based in the Mid and West Wales region of Scotland.

The SH8729 square kilometre intersects with the settlement of Llanuwchllyn.

SH8729 is within the post town of Bala, Merioneth.

The square is within Gwynedd - Gwynedd council.

The Point of Origin (0,0) is 436.59 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for SH8729

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Map Series	link	Ordnance Survey
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 SH8729 and the vertical and horizontal line divides the square into four quadrants

Dividing the SH8729 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 29

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 + 29 + 5 would give you the six figure grid reference of SH873295

SH	87		29
SH	87	3	29	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	52.846625	-3.679664	287000	329000
South East Corner	52.846625	-3.664476	288000	329000
North West Corner	52.855819	-3.679664	287000	330000
North East Corner	52.855819	-3.664476	288000	330000