If you’ve been watching USGS gauges all winter, waiting for your river to drop into shape between storms, you know the particular frustration of March steelheading. Rivers blow out, settle into that promising olive-green, then blow out again. Your window might be two days. When you finally get on the water, you need a fly big enough to register in turbid current, paired with enough weight to reach holding fish, and simple enough to tie a dozen in an evening so you’re not mourning the one you left on a submerged log.

That’s the case for the March Intruder — a pared-down, three-material version of the fly that changed winter steelheading. Marabou, Flashabou, and guinea fowl hackle on a 35 mm shank, tied in under ten minutes. It won’t win beauty contests, but it swims with the same pulsing, water-pushing profile that has provoked reaction strikes since Ed Ward first swung an oversized, “buggy, leggy” creation through the Skagit system in 1993.