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The hare's ear is a killer nymph! Don't get overwhelmed with all of the different fly patterns. The old standby's often get ignored but are great producers!

I would go in there with some sort of streamer after ice out. Those browns should be looking for a meal.

Does the stream have stoneflies? If so a large rubberlegs stonefly pattern might be tough to beat! Mantis' advice of pitching the flies upstream and taking out the slack line is a great simple way to start nymhing.... even though he made it "overly" simple, you will catch fish doing just that