Defense Mapping Agency charts (now known as National Imagery and Mapping Agency or NIMA charts) are U.S. government charts of waters other than the territories and possessions of the U.S. (see NOAA charts for coverage of U.S. territories). These charts provide excellent worldwide coverage of the world's oceans and coastlines and are updated regularly.
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The West Advisor
The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.
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