I have fished 5 days in a row on the Mississippi river and cant catch a stupid flathead for anything. I have tried the bottom side of the dam, the top side of the dam, tried A small creek that feeds into the river, I've tried around tons of structure, Ive tried on Sand bottoms, I have tried in 4 feet of water, and I have tried in 42 feet of water. I've used blue gills, worms, and suckers. I fished the other night until 4 in the AM and still nothing. I ended up catching a channel cat on a sucker minnow.. Is this just the wrong time of year? what else should I be doing? What discourages me, is this boat was coming in when I was and they said they caught 5 of them in from of the dam.. I go there and its 42 feet, and I fished for 3 hours and not a single bite (only bite I get is from mosquito) I have this spot for channel cats, Its about 50 yards from the river bank, and a small stream runs out into the river. It's about 4-5 feet deep and I caught 25 channel cats there in about 2 hours.. Could this place be good for flat heads as well? It has a sandy bottom.