The female will roam with in a hundred yards of nest sight feeding giving anglers an easy oppertuity to catch a monster. This time of year I mainly fish 6 ft. When summer takes hold water temperature raises pushing flatheads deep,I focus on 15 to 30 ft. of water even though flatheads will go as deep as 60 feet. To make this simple take your river break it down into sections or pools and focus on the deepest water available in each stretch. Flatheads will still feed on the flats above the hole or shorelines parallel to hole or bargecuts.
Flats produces large numbers of fish.
Fall feast starts in mid-September the rivers are stable and starting to cool. This is when flatheads load up for the winter. Fishing is unreal the same fish you were catching in the spring will put on 10 or so pounds by fall. They will gourge themselves until winter sets in. This time of the year is a flatheads most vunerable time in it's life,they will turn into eating machines.