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Old 03-27-2014, 03:07 PM   #4
Jeffrey S
Scraping Paint
 
City: Full-time onboard
Vessel Model: Trawler
Join Date: Oct 2007
Posts: 929
There are a half-dozen intracoastal waterways defined on NOAA charts. Each one has mile marker designations which, in my opinion, are becoming less meaningful as electronic charts are used more.

The major "ICW" is the Atlantic ICW. It starts at MM0 in Norfolk and continues without restarting until Key West near MM1240. The section south of Miami is more informal but it is still defined.
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