U.S. Geological Survey Open-File Report 2010-1035
Geophysical Data Collected from the St. Clair River between Michigan and Ontario, Canada (2008-016-FA)
Figure 3. U.S. Geological Survey R/V Rafael with 234-kHz SWATHplus transducers mounted on the bow. (Photograph by D. Foster, U.S. Geological Survey)
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