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

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U.S Chart No. 1

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 and their analogous digital products, such as NOAA raster navigational charts (NOAA RNC^®) 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).

Free copies of U.S. Chart No. 1 (pdf) are available to download above.