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NOAA Photo Library Image - map00079

"Echometre" record obtained by the French liner S.S. De Grasse when crossing over the head of a canyon on Georges Bank. Such records reinforced the view that vessels could navigate by using bathymetry. Accordingly, the United States Coast and Geodetic Survey embarked on a project to map the continental slopes and shelves to help guide mariners into United States ports.

Image ID: map00079, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Credit: NOAA Central Library Historical Collection

Category: Exploration/Maps/

High Resolution Photo Available

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Last Updated:
June 10, 2016