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Seafloor Mapping

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Lake Michigan

High Island Shoal Perspective View

Return to the Trout and High Island Perspective Views

Perspective View of Trout and High Island Shoal looking north.

Oblique view looking north along the west coast of High Island. The rough morphology nearshore (B), possibly glacial material, is similar in texture and trend to Gull Island Reef. This relief abruptly changes to a smooth, possibly sandy bottom (C) along a 2- to 3-m high scarp (D) at about 10 m water depth. The bottom of this scarp may represent the location of a previous glacial shoreline. The vertical exaggeration is 4x and the distance across the bottom of the image is about 1.8 km.

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