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. Features ...
When using a map, there will always be a key which identifies the symbols used on the map. You will need to refer to the key to find out what the symbols mean. The examples in the graphic below ...
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