The ST7860 Square Kilometre

ST7860 National Grid Square

Based in the South West English Region.

The ST7860 square kilometre intersects with the settlements of Freshford & Limpley Stoke.

ST7860 is within the post town of Bath, Somerset.

The square is within Bath and North East Somerset & Wiltshire councils.

The Point of Origin (0,0) is 410.47 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for ST7860

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Map Series	link	Ordnance Survey
Explorer 1:25,000 155 Bristol and Bath	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Landranger 1:50,000 172 Bristol & Bath	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 ST7860 and the vertical and horizontal line divides the square into four quadrants

Dividing the ST7860 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. ST , 78 and 60

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 ST + 78 + 3 + 60 + 5 would give you the six figure grid reference of ST783605

ST	78		60
ST	78	3	60	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	51.338655	-2.317268	378000	160000
South East Corner	51.338655	-2.302851	379000	160000
North West Corner	51.347684	-2.317268	378000	161000
North East Corner	51.347684	-2.302851	379000	161000