Northern Michigan fly anglers swear by this pattern for brookies, browns and rainbows. It’s also very effective on smallmouth bass and panfish. Invented by the legendary Earl Madsen of Grayling, Michigan this pattern, also called the “Michigan Dry Skunk” or the “Au Sable Skunk,” has truly withstood the test of time. As this fly is a hopper or stone fly imitation the occasional twitch while drifted can be very productive for trout. See also the Wet Skunk. Tied on a Daiichi 1280 chemically sharpened dry fly hook.