I thought that it might be interesting to list the NOAA (National Oceanic and Atmospheric Administration) database of sunken ships and obstacles. Most of the US coastline is covered along with the Great Lakes Region. The Database is searchable and in segments by region. You need a pdf reader like Adobe Acrobat which is available HERE for free.

Using this database you will be able to locate thousands of ships and obstacles. This database is especially great for divers.

Map by Region
Source: NOAA
Click on the database for the area you are interested in

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