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While there are a number of hatches starting to dimple the surfaces of rivers across the United States, none are more important or eagerly greeted by trout as the Blue Winged Olive Mayfly (BWO) hatch! Found in 48 of the 50 US states and all of Canada, the BWO hatch is as regular as [...]

      The Blue Winged Olive is the most prolific of mayflies found in North America and is a staple food on rivers in 48 of the 50 states. While the spring hatch of Blue Winged Olives or BWOs varies in hook size from a size 18-22, what they lack in size they more [...]