The Roger Blough ended up going to Ohio this week. Based on when she passed Detroit going down, I figured I had an outside chance of catching her on the return trip. This morning I checked AISwas and I saw that she was on Lake Erie and heading back up north. I did the plot based on her speed at the time and saw that she would be passing Detroit around 6:00P.M. or so. I thought I wouldn't catch her until I remembered that ships usually slow down around Amherstburg, so I figured that would give me a good chance of catching her at Belle Isle.