What is the distinguishing feature of red brown contour lines compared to brown contour lines?

The distinguishing feature of red brown contour lines, as opposed to brown contour lines, is their use for enhancing readability on certain types of maps. Red brown lines are typically chosen for their visibility, especially when printed on maps that need to convey information clearly to the reader. This use of color helps differentiate between various elements of the map while making it more accessible and easier to read.

In contrast, brown contour lines generally indicate elevation and terrain changes but do not necessarily have the same readability enhancement that red brown lines offer. This distinction plays an important role in map design, particularly in contexts where clarity is crucial for the user's understanding of the geographical features represented.