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A symbol placed on a map to stand for a feature too small to draw to scale is best described as

  • A.an isoline joining points of equal value
  • B.a graticule line used for reference only
  • C.an off-scale or conventional symbol
  • D.a generalised boundary around an areal unit

Answer: C

Correct answer: an off-scale or conventional symbol

A church, a windmill or a trigonometric station occupies a few metres on the ground and nothing at all at 1:50,000, so it is drawn as a conventional symbol whose size reflects legibility rather than ground extent. The consequence to remember is that such symbols are not measurable: their position is meaningful and their size is not.

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