pl23_map00079.jpg
![Echometre record obtained by the French liner S map00079.jpg Echometre record obtained by the French liner S](https://s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_map00079.jpg)
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https://www.noaa.gov/media/digital-library-photo/pl23map00079jpgDescription
Echometre record obtained by the French liner S.S. De Grasse when crossingover the head of a canyon on Georges Bank. Such records reinforced the viewthat vessels could navigate by using bathymetry. Accordingly, the United StatesCoast and Geodetic Survey embarked on a project to map the continental slopesand shelves to help guide mariners into United States ports.
Credit
NOAA Central Library Historical Collection
Collection
Voyage to Inner Space
History of Oceanography Collection
Bathymetric Maps Collection
Keywords
Exploration
Maps