3 Mile Drake Cripple

Created by Umpqua signature tyer Pete Shanafelt on the lower Henry’s Fork, the 3 Mile Cripple has proven itself on nearly every major river in Idaho and Montana. This fly pattern was designed to imitate mayflies trapped in the surface film—cripples that trout eagerly target due to their vulnerability. You can’t beat the effectiveness of a pheasant tail body for natural segmentation, and the subtle flash of ice dub adds just enough glimmer to catch a fish’s attention without spooking them. The bold black wing isn’t just for looks—it creates a high-contrast target that stands out in low light and overcast conditions, helping fish lock on and commit. Better yet, the wing holds its profile well, resisting the sogginess that often ruins other cripple patterns. With its durability, visibility, and fishy silhouette, the 3 Mile Cripple is a deadly choice during drake hatches or any time you see struggling duns on the water.

When fishing the 3 Mile, try targeting slower, glassy runs or foam lines where trout have more time to inspect their food. Use a long, fine leader (9-12 feet, 5X or 6X) to ensure a delicate presentation. To maximize its effectiveness, apply a high-quality floatant to the fly’s body and wing before casting, but avoid the hackle to maintain a natural drift. If the water is calm, let the fly pause momentarily after the cast—this slight hesitation often triggers strikes as the trout perceive the "crippled" drake as an easy meal.