Fly Fishing Trout Fly
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Fly Fishing Nymph

Oregon: Mann Lake Hatch Chart

FlySizeJanFebMarAprMayJunJulAugSepOctNovDec
Boatman/Backswimmers10 - 12     
Leeches6 - 10     
Scud12 - 16     
Streamers (various)6 - 10     
Damselfly10 - 12       
Callibaetis14 - 18          
Click Fly Name to see patterns that imitate it.