Figure 11. Detailed view of sidescan-sonar imagery showing mottled backscatter and corresponding bathymetry. Mottled backscatter in the sidescan-sonar data is caused by the hummocky surface of moraines and glacial till inconsistently reflecting backscatter due to the variable topography and sediment distribution. Possible channels, oriented toward the south and west, are visible in the bathymetry. Note: black line outlines high-resolution multibeam bathymetry which overlies bathymetry from the Coastal Relief Model. Figure location is shown in figure 2.