In much of the Northeast spring there are a staple of hatches that one may encounter, that require patterns to be on-hand in order to avoid fishless days. Those hatches have become identified over time by their respective patterns most commonly tied and fished. Here in Central PA, those patterns hold true as well. They are the Dark Hendrickson, March Brown & Grey Fox hatches that we all have learned to love or hate over the years depending on your success or failure while fishing over them.