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| Map of southern Lake Michigan showing areas surveyed using sidescan sonar imagery and seismic reflection track lines. Together, these data provide the basis for preparing lake-bottom maps of physiography and sediment distribution. |
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U.S. Department of the Interior, U.S. Geological Survey
URL: http://pubs.usgs.gov/fs/lake-michigan/figures/fig2.html
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Last modified: 15:31:14 Fri 02 Jan 2004
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