Map symbol

A map symbol or cartographic symbol is a graphical device used to visually represent a real-world feature on a map, working in the same fashion as other forms of symbols. Map symbols may include point markers, lines, regions, continuous fields, or text; these can be designed visually in their shape, size, color, pattern, and other graphic variables to represent a variety of information about each phenomenon being represented.

Map symbols simultaneously serve several purposes:

• Declare the existence of geographic phenomena
• Show location and extent
• Visualize attribute information
• Add to (or detract from) the aesthetic appeal of the map, and/or evoke a particular aesthetic reaction (a "look and feel")
• Establish an overall gestalt order to make the map more or less useful, including visual hierarchy