How can contour lines be represented on a map?

Contour lines on a map are primarily used to represent elevation and the shape of the terrain. The correct representation for contour lines is often done in red-brown. This specific color helps distinguish these lines from other features on the map, such as water bodies, roads, and vegetation, which are typically represented in different colors.

Using red-brown for contour lines makes it easier for map readers to interpret the terrain quickly, allowing them to understand how steep or gentle the slopes are. This visual clarity is crucial for activities such as hiking, planning construction, or conducting surveys in the field, where understanding elevation changes can greatly affect decision-making.

In contrast, other colors such as blue, black, and green are commonly used for different elements on a map, such as water features, roads, or vegetation, and do not typically represent contour lines. Therefore, identifying contour lines with the color red-brown is essential for accurate map reading and interpretation.