Figure 13. Map showing interpretation of the sea floor in National Oceanic and Atmospheric Administration (NOAA) survey H12023 including bedforms, scour depressions and erosional outliers, and boulders. Areas that are not outlined represent predominately undisturbed modern marine sediments. Interpretations are based on multibeam-echosounder, sidescan-sonar, sedimentary, and bottom-photographic data.