amazing info i would like to share with the board. just confirmed by a local enthusiast flatheads have been again caught recently above taylors falls dam on the st.croix river. this would extend the range another few hundred miles upstream. unfortunatly they are extreamly rare in this streach for some reason. i have afew freinds that live and fish the uper croix hard for everything imaginable, and to our knoledge the flaties had dissapeared compleatly as a result of the dam. for those unfamilar with the upper croix, it is fairly clear water and most of it averages less than 1ft probably less than 6inches. deeper spots run 2-4ft and you can see the bottom just about everywere you would fish. best run in a canoe. this guy has caught afew accedentaly targeting channels with live suckers! none were over 5lbs. but definitely flatties. this would push the range well up into northern minnesota and north-western wisconsin.!!!! i imagine that they(flaties) dont do well in this streach as their young are eaten by the extreamly high population of smallmouth bass that dominate this clear water streach.