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U.S. Chart No. 1 (Chart Symbols)

More than 100 pages of information about nautical chart symbols

The Symbol Legend for U.S. Nautical Chart Products

U.S. Chart No. 1 describes the symbols, abbreviations, and terms used on nautical charts. It is produced by NOAA and the National Geospatial-Intelligence Agency. The symbols for paper charts, including charts output by the NOAA Custom Chart application, are shown, as well as the symbols used to portray NOAA electronic navigational charts (NOAA ENC^®) data on Electronic Chart Display and Information Systems (ECDIS).

Paper copies of U.S. Chart No.1 may be purchased from a NOAA certified printer.