legend—A description, explanation, table of symbols, and other information, which is printed on a map or chart for a better understanding and interpretation of it. The title of a map or chart was formerly considered as part of the legend, but this usage is obsolete. The title should be considered as separate and not part of the legend.

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Source: NSPS “Definitions of Surveying and Related Terms“, used with permission.

Part of LearnCST’s exam text bundle.