Which color indicates contour lines on a map?

Contour lines on a map are used to represent elevation and the shape of the terrain. The color that specifically indicates these lines is brown. This distinction helps map readers easily identify changes in elevation and understand the topography of the area being studied.

Using brown for contour lines standardizes map interpretation, as this color is widely accepted in cartography for this purpose. Elevation changes represented by contour lines can provide vital information for navigation, planning military operations, or even everyday hiking and outdoor activities. The use of brown helps ensure clarity in differentiating between various features on the map, thus making it easier to visualize elevation and terrain relief.