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Click on the arrows within the index map below or the thumbnail images to view the perspective views.
Larger View (172 kb)
Oblique view looking southwest at Trout Island Shoal (A). Three generations of recurved spits (a,b,c), possibly composed of sand, are migrating eastward past the shoal. Northwest-southeast linear ridges at (G) are partly obscured by recent patches of smooth sand. The vertical exaggeration is 4x and the distance across the bottom of the image is about 2.5 km.
Larger View (232 kb)
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.