A method of producing a location identifier comprising: obtaining the geographical coordinates of a location; converting the geographical coordinates into single unique value n; converting the single unique value n into a unique group of a plurality of values; converting the plurality of values into an equal plurality of respective words; and providing the plurality of words as a location identifier, and a method of identifying a location comprising: obtaining a location identifier for a location, the location identifier comprising a plurality of words; converting the plurality of words into a unique group of an equal plurality of respective values; converting the unique group of a plurality of values into a single unique value n; converting the single unique value n into geographical coordinates; and outputting the geographical coordinates.