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National Seafloor Mapping and Benthic Habitat Studies

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Lake Michigan

Boulder Reef Perspective Views

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

Boulder Reef Index Map Boulder Reef perspective view 1

Larger View (200 kb)

Oblique view of Boulder Reef looking northwest. The relatively steep slopes of the southern end of the ridge and the different rough morphologic character of the cobble and gravel substrate fill the foreground. A small depositional apron of sand (B) seen in underwater video collected at this site is forming off the southeast part of the reef. The vertical exaggeration is 4x and the distance across the bottom of the image is about 3.5 km.

Boulder Reef perspective view 2

Larger View (120 kb)

Oblique view of the Boulder Reef area looking southwest. This view emphasizes the east-west lineations (C) and smooth morphology of the sand draped surface north of Boulder Reef. The vertical exaggeration is 4x and the distance across the bottom of the image is about 4.0 km.

 

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Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://walrus.wr.usgs.gov/pacmaps/lm-brpersp.html
Page Contact Information: Peter Dartnell
Page Maintained By: Laura Zink Torresan
Page Last Modified: 8 September 2008 (lzt)