Transcription: A contour map is a map of some constant quality in an area. The mapping may be of constant temperature, pressure, height, etc. Most familiar are contour maps of elevation of land. An example is shown below. In this aerial view of a piece of land, the contours of constant elevation are shown. Thus the land goes from an elevation of 100 meters on the right to a peak elevation of 145 on the left. Note that this map is an approximation and is only as accurate as the surveyor could be on the site when it was made. The areas between the contour lines are not flat, of course, but must be interpolated ...
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