OS maps show physical and human features as symbols. This makes the maps easier to read. Each OS map has a key to show what the symbols mean. Large-scale maps - 1:1,250, 1:2,500 and 1:10,000.

If you're heading for Britain's hills and mountains, there's simply no better companion than OS Maps – an app that puts all ...

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 ...