Iceman's description for Missouri is exactly correct. A designation adopted by Missouri Dept. of Conservation for our creeks and streams that will support natural reproduciton of trout. No live bait, soft plastic lures, cheese, dough baits or corn. Flys and hard bodied lures only with a limit of one fish of at least 18 inches per day....and you don't catch many of them. I don't keep them when I do. For the wife and I there are much better tasting fish than trout!!