Fly-tying corner

In late winter on the Middle Deschutes and the Fall River, a little-known hatch takes place when little black stoneflies crawl from beneath their rocks and head for shore. That is when they are vulnerable to opportunistic trout. But some of the best action is on top of the water. Be ready with a selection of Little Black Winter Stones.

Carry various sizes to match the size of the adult stones you find on the surface. Fish them dead drift to rising trout. Don't ignore the runs closest to shore. Cast close to the bank before wading in.

Tie this pattern on a No. 18 dry-fly hook. For the abdomen, use black Superfine dubbing. For the wing, use medium dun elk hair. Finish with a dark dun or black hackle undersized by one or two hook sizes.

— Gary Lewis