Pacific Coastal & Marine Science Center
National Seafloor Mapping and Benthic Habitat Studies
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Color-coded shaded-relief bathymetry of the nearshore region along the south coast of Little Traverse Bay. Onshore aerial photography and Digital Elevation Models (DEMs) show that the surface morphology of this region is marked by glacial drumlins aligned northwest-southeast. Nearshore, mainly in water depths from 0 to 10 m (A), the morphology is irregular and blocky, suggesting outcrops and coarse substrate. Offshore of the outcrops, a shore-parallel trench (B), 1-3 m deep, separates the outcrops from the deeper sediment covered region (C). Superimposed on the sediment are a series of shore-normal (north-south) bedforms, less than 0.5 m high at (D), west of Nine Mile Point, suggesting sediment transport parallel to the shoreline.