I don't know what the rivers are like coming in/out of Winnefred, but if I am going to a new place that may or may not hold grayling, I look for moving water. Small rapids, riffles, ripples.....anywhere that the water is 'flowing'. Grayling seem to love 'moving' water. Whichever gear you decide to use (fly or spinning) , cast upstream. If you are using small spinners or spoons, let the lure drift downstream thru the moving water while you retrieve the lure. If you are using flies, cast upstream and drift the fly over the rapids. Don't even bother stripping. Grayling will sit (hold) behind any obstacle that is altering the flow of water. This could be a rock, boulder, tree, etc. The biggest grayling will claim the best spots. Start your cast upstream and drift the lure/fly over or thru this obstacle. The grayling will be holding behind the obsticle waiting for a meal to come to them. Hope this helps, best of luck! Keep us posted, take pics!