A mosaic of Gloria data for the northern end of PMNM.  Note that in this image, lighter color denotes hard seafloor whereas darker color shows softer sediment seafloor.

A mosaic of Gloria data for the northern end of PMNM. Note that in this image, lighter color denotes hard seafloor whereas darker color shows softer sediment seafloor. Image courtesy of the U.S. Geological Survey.

 

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