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Nautical Charts

The nautical chart is a fundamental tool of marine navigation. It shows water depths, obstructions, aids to navigation, channels, shoreline, and more – hopefully all the information mariners need to navigate safely.

Cape Ann Chart - Interactive chart of Cape Ann

AIS Chart - From MarineTraffic, showing vessel positions in our area. The Automatic Identification System (AIS) is an automatic tracking system used on ships and by vessel traffic services (VTS) for identifying and locating vessels by electronically exchanging data with other nearby ships and AIS Base stations.

NOAA Nautical Chart Viewer - NOAA ENC® Viewer provides a continuous depiction of the U.S. coastal waters as displayed on electronic chart systems. Included ENCs are updated weekly and include all of the latest Notice to Mariners corrections.

Massachusetts Charts - List of available charts using NOAA's Online Chart Viewer

Historical Nautical Charts - Office of Coast Survey's Historical Map & Chart Collection covers the land and waters of the United States of America, including territories and possessions (past and present).

Other resources complementing nautical charts can be found on this page.



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