This is my oppinion on it, you may find them all over in the lake, but in the summertime they seem to want to be in the cooler waters, therefore being the deeper waters, on on ledges next to the deeper water. Also they like to be hidden, and like said in earlier posts, you may find them on the shady side of standing timber, logs, laydown, etc. The closest lake to me averages about 6 to 9 feet with a few holes getting around 20ft deep, and I have had better luck fishing around structure in the deeper holes.