I have heard rumors that guys have caught blues from the GMR as far north as Moraine. I also was told by someone at a bait shop in Hamilton that there are blue's in the area around the last low dam in hamilton. I guess the best way to prove this is to fish for them in a spot that may hold a blue. I live in Dayton and spend a lot of time at the low dam across from the power plant in Miamisburg/franklin area. I have also fished a spot near the middletown airport. One of these days I want to try the old low dam on 73. I have had a great year catching channels. I also caught a 8pound shovelhead on Magic Bait. My biggest channel was about 9 pounds and I caught it on magic bait also. I have fished with live goldfish and have caught channel cats on them. Last week I caught a 2 pound shovelhead on a medium goldfish. I really want to get into some blue fishing here soon.