Topographic Map

A map that shows the change in elevation over a geographic area through the use of contour lines. The contour lines trace points of equal elevation across the map. See also contour line and contour map.

Related terms:

• Contour Map
• Contour Line
• potentiometric map
• structural contour map
• structure-contour map
• isolith map
• isobaric map
• rate-of-change map
• structure map
• tectonic map