Tonight I am posting a photo from my dad's collection. I do not know who the photographer was, but I can tell you that this photo was probably taken in the late 1970s or early 1980s near Sault Ste. Marie, Michigan. Can anyone identify the vessel?

Thanks to Marc and Werner, I have identified that this vessel is the KEYSTONE STATE, a U.S. Navy auxiliary crane ship, which was the former APL cargo vessel PRESIDENT HARRISON. She had been converted by Defoe Shipbuilding in Bay City over the winter of 1983-84 and, thanks to Marc, I have determined she was on her way out of the lakes at the time of this photo. Therefore, this leads me to conclude that this photo was taken somewhere in the St. Clair River near St. Clair, Michigan.

Thanks again, guys, for your help.