Hatch profile
Epeorus pleuralis
Water-temperature trigger
Top fly patterns
Classic Catskill spring hatch. First major mayfly of the year on many freestone streams. Emerges underwater — wet flies often outperform dries.
Best rivers
New York
Beaverkill River
Apr 20 – May 10 · heavy
New York
Willowemoc Creek
Apr 20 – May 10 · heavy
New York
Neversink River
Apr 20 – May 10 · heavy
New York
Rondout Creek
Apr 20 – May 10 · heavy
Virginia
Rapidan River
Apr 5 – Apr 25 · moderate
Virginia
Roaring Run
Apr 5 – Apr 25 · moderate
West Virginia
Cranberry River
Apr 5 – Apr 25 · moderate
West Virginia
Shavers Fork
Apr 5 – Apr 25 · moderate
North Carolina
South Toe River
Apr 5 – Apr 25 · moderate
Georgia
Conasauga River
Apr 5 – Apr 25 · moderate
Other rivers with Quill Gordon activity
Bield: Fish watches USGS water-temp gauges for your home water and pings you when conditions hit the 48–56°F trigger window.
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