Fly Fishing Trout Fly
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Fly Fishing Nymph

Oregon: Metolius River Hatch Chart

FlySizeJanFebMarAprMayJunJulAugSepOctNovDec
Blue Winged Olive16 - 22 
Caddis (various)8 - 12       
Caddis (various)12 - 18     
Yellow Quill14 - 16          
Green Drake8 - 12         
Pale Morning Dun16 - 18       
Yellow Sallie14 - 16         
Golden Stonefly8 - 10         
Salmon Fly4 - 6           
Olive Stonefly14 - 18          
Click Fly Name to see patterns that imitate it.