I see lots of pictures of surprisingly large cutties come out of our rivers. 5-6-7lbers. Most of the ones I've heard of come out of the lower parts of rivers where the rivers are big and often difficult to probe with a fly rod, or gear for that matter. Those big fish usually like to hang out deep. If people stopped taking 5 fish limits daily and releasing a bunch of fish that got hooked in the eyes and gills we might see some more large fish in the lakes, like that ridiculous specimen Stonefish showed. The biggest I've caught was 22" out of a tributary stream. Swung fly. Looked like a little steelhead.