On the Michigan / Canadian border, DoC Mapping completed a full-range topographic, bathymetric and depth of cover analysis on lines that cross the St. Clair River near Marysville, MI.
![](https://docmapping.com/wp-content/uploads/2014_StClair_Bluewater_EDITED.jpg)
Two lines and one line bundle were reported on in an area where swift currents and busy shipping channels are present.
![](https://docmapping.com/wp-content/uploads/2014_StClair_Border_EDITED.jpg)