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Orvis UK

Iron Blue Dun

$2.25

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Description

A best seller. Iron Blue Duns are found on rivers from May through to late October. Fish feeding on Iron Blues can be very fussy, so size, profile and colour are essential considerations in choosing your pattern.

Fishing Profile

Fly
Best for
Fly, Trout
Presentation
Surface, Dead Drift, Floating
Techniques
Casting, Finesse
Conditions
Clear Water, Low Light
SeasonSpring
WaterFreshwater

Field Notes

This is a dry fly pattern meant to imitate an adult Iron Blue Dun on the surface. It is best fished to selective trout on rivers when fish are keying on small mayflies and need a precise, natural presentation.

Pros

  • Highly effective during a specific hatch
  • Natural profile for selective fish
  • Good choice for technical river fishing

Cons

  • Can be too specific if no hatch is present
  • Small size and subtle profile require accurate presentation

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