I think the Steelhead must be similar to ones raised below Grand Coulee in Rufas Woods Res. Those are what we see in local stores. The Colville Tribe started that operation and then sold it to the current owners Pacific Seafoods, who upgraded all the pens. Caught many big fish there when the pens would break open, releasing 5-10#ers. It was a gas on a 5wt. They were fed with shrimp pellets and were so fat they were best smoked.