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National Seafloor Mapping and Benthic Habitat Studies
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Click on the arrows within the index map below or the thumbnail images to view the perspective views.
Larger View (224 kb)
Oblique view looking west toward Hog Island. The pronounced northwest-southeast trending lineations in the center of the mapped area (B) die out to the north and appear buried by a coarse morphology that looks similar to the boulder and cobble areas seen at Boulder Reef and Gull Island Reef . The vertical exaggeration is 4x and the distance across the bottom of the image is about 3.5 km.
Larger View (172 kb)
Oblique view looking north at Hog Island Reef (A). North-south trending bedforms (D) are associated with patches of modern lake sediment composed of sand alligned east-west. The fine and linearly continous morphology of glacial or bedrock outcrop underlie both the bedform and sand patches. The vertical exaggeration is 4x and the distance across the bottom of the image is about 3.5 km.