Which color on a topographic map indicates structures?

On topographic maps, black typically indicates man-made features and structures such as buildings, roads, and other infrastructure. This convention allows map users to easily identify developed areas and structures within the terrain.

In contrast, other colors have specific meanings that differ from indicating structures. Brown generally represents contour lines and elevation changes, green denotes vegetation or wooded areas, and red/orange is commonly used for urban areas or primary roads, but not specifically for buildings or structures. This understanding of color coding is crucial for accurately interpreting topographic maps for navigation and planning purposes.