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sidescan sonar image of Astoria Canyon


Sidescan sonar "image" of base of Astoria Canyon wall showing large fractures in rocks. Shadowed areas are pure white.


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Lewis and Clark Legacy: May 31 - June 13 log




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http://oceanexplorer.noaa.gov/explorations/lewis_clark01/logs/jun13/media/5sidescanresults.html