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Go to the Ordnance Survey website (UK) and information on using a 6 figure grid reference can be found there.

Basically, the UK is covered in 100,000 metre grid squares. Each grid square is identified by two letters. These squares are further divided into 10,000 metre squares that are numbered along the map's borders. An example reference could be: SD 638365 The SD identifies the 100,000 metre square, the 63 is the vertical line to the west of the point. The 8 is the tenths from that line easterly to the point. The 36 is the horizontal line south of the point. The 5 is tenths northerly from the line to the point. (5 would be half way).

Instructions on taking grid references are printed on all Ordnance Survey Maps.

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12y ago

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Q: How do you use a six grid reference?
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