From RTÉ Radio 1's The History Show, writer Mary Russell tells the story of how the very first Ordnance Survey maps of ...

Enjoy a memorable family day at one of over 400 English Heritage sites – like Hadrian's Wall or Dover Castle – when you ...

This land is gently sloping. It is also important to be able to interpret the site and situation of a settlement from an OS map. There are both physical and human factors that affect the site and ...

Ordnance Survey (OS), the UK's leading mapping authority, has revealed that its open datasets are now available through ...

Ordnance Survey datasets covering roads, rivers, boundary lines and other themes are now available on Snowflake Marketplace.

The UK has long been a leader in digital mapping data, digitising 230,000 maps in 1995. Since 2015 Ordnance Survey Ltd has been a government owned limited company in public ownership. The company ...

are added to a map to show height and gradient. On OS maps they are shown as thin orange or brown lines, some of which have the land height written on them. The lines join areas of equal height ...