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Ordnance Survey Ontologies
From the website: The goal of Ordnance Survey’s GeoSemantics team is to provide both an explicit representation of our organisation's knowledge and a set of increasingly... -
Ordnance Survey OpenData
MiniScale® Data type: Raster Supply format: TIFF [LZW] Great Britain [304 MB] 1:250 000 Scale Colour Raster Data type: Raster Supply format: TIFF [LZW] Great Britain [112 MB]...