Dry fly
Olive Upright
Fast-water upright olive
Trout · GraylingSurface
A yellow-olive upright dun for fast, stony rivers — the clinger nymph's brief, exposed moment on the way to the bankside stones where it hatches out.
Fish this when
During the Olive Upright hatch on fast, stony-bottomed rivers from April through summer, when duns are riding up through broken riffles rather than the flatter glides.
Why it works
The upright wing throws a clean silhouette against broken, light-scattering water that would blur a flush-riding pattern, matching the natural in exactly the fast rocky habitat this clinger nymph needs to survive.
Naturals it imitates
Olive Upright dun (Rhithrogena semicolorata)
Typical zone & fishable range
usually
Surface
Film
Subsurface
Deep
Setup sensitivity: medium
Quick facts
Tying difficulty
Intermediate
Buy or tie?