Figure 4. Bathymetric map of the Continental Shelf outside New York Harbor. Depth 

 contours are from the National Ocean Survey Chart 1215 (1970), based on a 

 1934 survey. Note the northeast-trending expression of Shrewsbury Rocks; the 

 location of a Coastal Plain cuesta. Note also the topographically positive features 

 in the former Hudson (submarine) Channel north of Castle Hill and a similar 

 mound at Diamond Hill to the northeast. 



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