Chart Number One is essential to correct and accurate use of nautical charts. More than a chart, it is a book that defines the symbols, abbreviations and terms

Chart No. 1 contains a description of the symbols, abbreviations and terms that appear on nautical charts produced by the National Imagery and Mapping Agency, t

New- 12th Edition of U.S. Chart No. 1, Symbols, Abbreviations and Terms used on Paper and Electronic Navigational Charts Please read the following information r

Improve your understanding of charts and you will navigate with increased safety and confidence. First explaining how charts are compiled, this guides you throu

As in previous editions, the symbols used on paper nautical charts produced by NOAA and the NGA and digital raster representations of those charts, such as NOAA