Keywords: Ontonagon pier aerial view.jpg en Ontonagon pier aerial view 1988-06 cite CASE HISTORIES OF CORPS BREAKWATER AND JETTY STRUCTURES Report 3 North Central Division Robert R Bottin Jr Coastal Engineering Research Center Waterways Experiment Station Army Corps of Engineers June 1988 11 55-59 http //chl erdc usace army mil/Media/4/3/8/TechReport3aF pdf Robert R Bottin Jr PD-USGov Uploaded with UploadWizard Historic districts in Michigan National Register of Historic Places in Ontonagon County Michigan |