In my experience, You can also look at the tail fin, A stock trouts tail fin is rounded off by being in the concrete pools. "wild trout" or hold overs have sharp, crisp edges to their tail fins. I haven't devoted any time to fly fishing this season so far, been concentrating on Bow season in Lincoln county. My son-in-law and I did fish the Tuskegee DH, Sylva area the weekend prior to DH closing. bottom was slick as heck, water moving fast and water cloudy. I slipped and went down, it was hard to get back up. Luckly my waders didn't fill. couldn't get to where I wanted to be.