Conventional signs and symbols are important part of a map because a map must be clear and easy to read, as every map shows and records a variety of information. As all information?s in one map may crowd a map, so different signs and symbols are used to save space and to keep map look cleaner. These signs and symbols can be in the form of small drawing, lines, letters, short words or coloured areas. These are explained through a 'Key'.
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