BlueChart's mapping symbols meaning
Garmin uses NOAA (National Oceanic and Atmospheric Administration) charts to create the Bluechart mapping used in our devices. Garmin bases digital mapping from the paper charts made by NOAA.
The best place to find information about the symbols used for the BlueChart mapping is NOAA Chart No. 1 webpage.
This page offers different chapters of information. For instance, if information about the symbols used for bouys is desired, the Aids and Services chapter can be downloaded, or just the section from that chapter called Bouys and Beacons can be downloaded alone.
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