Figure 25. Detailed planar view north of Rocky Point, New York, of the sidescan-sonar mosaic produced during National Oceanic and Atmospheric Administration survey H11251. High-backscatter targets with shadows are interpreted to be boulders. Lines with white cross hatches are sonar artifacts caused by nadir (the track directly under the vessel) not removed during sidescan-sonar processing. Location of view is shown in figure 16.