The PROSAS Surveyor provided the most detailed sonar image of the steamship Portland yet made.  Please visit http://stellwagen.noaa.gov/maritime/portland.html for more information on this vessel.
 PROSAS Surveyor
Image courtesy of NOAA/SBNMS and Applied Signal Technology, Inc. Download larger version (jpg, 2.3 KB).

The PROSAS Surveyor provided the most detailed sonar image of the steamship Portland yet made.  Please visit http://stellwagen.noaa.gov/maritime/portland.html for more information on this vessel.

Learn more