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1:25 000 Scale Colour Raster support

The data equivalent of our OS Explorer paper map series, 1:25 000 Scale Colour Raster tiles are high-quality digital maps that you can embed in your GPS device or mobile app.

Symbol updates

We are modernising some symbols in the 1:25 000 Scale Colour Raster product. They give more information to users and to reflect the changing nature of our landscape.

As part of the design process, we ran a competition with the BBC's The One Show, when the general public sent in designs to replace the exisiting symbols. The winning symbols will start appearing as tiles are revised and supplied in normal change-only update refreshes.

Can I define my own area?

Yes, it is possible to order user defined areas by:

  • Specific tile identities;
  • administrative region; or
  • bounding box.

The product is also available by:

  • Great Britain
  • England
  • Scotland
  • Wales

Please note that tiles are supplied whole, rather than clipped to fit geographic areas.

Does Ordnance Survey provide a list of updated tiles?

Ordnance Survey provides a list of tiles that were updated for that release on the product Technical Information page. The product is updated every March, June, September and December.

When were my tiles last updated?

Ordnance Survey provides a list of every tile depicting the date they were last updated on the Technical Information page for the product.

Can I georeference the data file?

To locate 1:25 000 Scale Colour Raster data tiles in their correct geographic position in a GIS they need to be 'georeferenced'. Refer to the Technical Information or follow the link below about geo-referencing.

Geo-referencing information

Can I convert it into a monochrome image?

It depends on which software package you are using. Some packages have a facility whereby you can load the colour image onto a computer and, using one of the command drop-down menus, select the greyscale option. This will change the colours on an image to shades of grey (greyscale). This is not the same output as monochrome where features in the file are either black or white.

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© Ordnance Survey 2019