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Ordnance Survey – Great Britain's national mapping agency
Meridian 2 is compiled from different scaled data sources, ranging from 1:1250 to 1:250 000 scales, however Meridian 2 is generally viewed at a 1:50 000 scale.
The data is held on CDs and is available in the communications and topographic themes in the following areas: national coverage, England, Scotland and Wales. Meridian 2 tile size is now 10 km by 10 km, which give 2857 tiles for national coverage.
Meridian 2 is updated annually during January.