Great Britain's national mapping service

We help Great Britain maintain its position as a geospatially advanced nation. Our trusted data and experience help show the world how to use location intelligence to shape the places in which we live.
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OS Explorer mapping

Extract from OS Explorer mapping in a 1:25 000 scale. This image shows a hillshade technique overlaid on top.

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Outdoors

Get more from the outdoors

Whether you're planning a walk, hike, run or ride; the OS Maps app will help you get more from your time outside. Download now and start exploring! Visit the OS Shop to browse our full map range, including iconic leisure maps, personalised maps and wall displays; as well as books and outdoor gear to help get you outside.

5 million+downloads of OS Maps app since launch 

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