Okay,
I have added the city of Sault Sainte Marie in North Michigan and gave it a Harbor. That worked, but I noticed no Harbor Exit Points Lists. I was hoping for Sault.
Is this something I can set? Most cities seem to work when I put a Harbor in an area with Water or River that has a name.
Added an Indian Village in Seminole Florida and it picked up okay
Harbor Exit Points Lists:
Lower Saint Mary
Saint Mary Estuary
Ogelagana