Seafloor Mapping

Lake Michigan

Click on the arrows within the index map below or the thumbnail images to view the perspective views.


Larger View (156 kb)	Oblique view looking south towards Big Rock Point. Rough irregular morphology (E) composed of bedrock outcrop extends from the coast offshore to the edge of the survey, except in the left foreground (F), which appears depositional. The vertical exaggeration is 4x and the distance across the bottom of the image is about 1.3 km.
Larger View (172 kb)	Oblique view looking toward the east over Nine Mile Point. This view illustrates the onshore (G) and offshore expression of a glacially created drumlin trending northwest-southeast. The view also shows the sharp trough-like boundary (B) between the offshore sediment covered region and the nearshore, irregular relief of coarser material and outcrop. The vertical exaggeration is 4x and the distance across the bottom of the image is about 1.0 km.
Larger View (208 kb)	Oblique view of the eastern portion of the Little Traverse Bay data set looking west along the coast. This view illustrates the nearshore, rough relief of outcrops and coarser substrate and the offshore, sediment covered substrate, separated by the shore-parallel trench (C). The blue rectangular areas close to shore are bathymetry data gaps and show the water column from the aerial photographs. The vertical exaggeration is 4x and the distance across the bottom of the image is about 800 meters.