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NOAA Photo Library Image - cgs00925

Offshore survey of the approaches to New York in 1936 showing delineation of Hudson Canyon and other previously unknown canyons. The diagram illustrates the use of various methods of navigational control including visual, taut-wire buoy traverses, and radio acoustic ranging (RAR).

Image ID: cgs00925, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Credit: NOAA Historical Image

High Resolution Photo Available

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Last Updated:
November 10, 2017