Mountain Trout Streams: A good way to catch the trout feeding on the natural little yellow stonefly drys and nymphs is to fish a Little Yellow Stonefly Dry size 16 or a Murray's Little Yellow Stonefly Dry size 16 with a Murray's Miracle Yellow Stonefly Nymph size 16 on a twenty inch 6X dropper below it. Fish these upstream dead drift to cover the whole pool.