What color identifies most man-made structures on a map?

Most man-made structures on a map are identified by the color black. This convention is used in cartography to represent a variety of human-made features such as roads, railways, buildings, and other infrastructure. The use of black allows for clear visual distinction from natural features, which are typically represented in colors like green for vegetation and brown for terrain features like mountains or hills.

Maps rely on specific color codes to convey different types of information efficiently, and black is consistently used for the man-made elements to ensure easy identification. This organization helps users quickly understand the layout of an area and locate important structures and pathways.