Hatch calendars by river
New York trout hatch calendars.
6 rivers covered. Each calendar runs through the full year of mayfly, caddis, stonefly, midge, and terrestrial activity — with peak windows, fly patterns, and water temperature triggers.
Rivers
New York hatch waters.
Delaware County
West Branch Delaware River
Tailwater · brown_trout / rainbow_trout
Notable hatches
Midge · Blue Winged Olive · Hendrickson
Sullivan County · Delaware County
Beaverkill River
Freestone · brown_trout / rainbow_trout
Notable hatches
Midge · Early Black Stonefly · Blue Winged Olive
Sullivan County
Willowemoc Creek
Freestone · brown_trout / rainbow_trout
Notable hatches
Midge · Early Black Stonefly · Blue Winged Olive
Ulster County
Esopus Creek
Freestone · brown_trout / rainbow_trout
Notable hatches
Midge · Early Black Stonefly · Blue Winged Olive
Sullivan County
Neversink River
Freestone · brook_trout / brown_trout
Notable hatches
Midge · Early Black Stonefly · Blue Winged Olive
Ulster County
Rondout Creek
Freestone · brown_trout / brook_trout
Notable hatches
Midge · Early Black Stonefly · Blue Winged Olive
Live water temp + hatch alerts.
Bield Fish reads USGS gauges and surfaces hatch alerts as water hits the trigger window.