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Rivers

Davidson River · hatch chart

Fishable all year; the hatchery-supported reach holds fish through winter

By The Fly Desk · Published 2026-10-14

By month

JanFebMarAprMayJunJulAugSepOctNovDec
MonthInsectStageSizeTimeIntensity
MarBlue Quill (Paraleptophlebia)Dun#1612:00-15:00
AprQuill Gordon (Epeorus)Dun#1411:00-15:00
MaySulphur (Ephemerella)Dun#1618:30-20:30
MayMarch Brown (Stenonema)Dun#12-1411:00-15:00
JulLittle Yellow Stone (Isoperla)Adult#14-1611:00-18:00
AugTerrestrials — ants and beetlesAdult#14-1810:00-17:00
OctBlue-Winged Olive (Baetis)Dun#18-2013:00-16:00
DecMidges (Chironomidae)Pupa#20-2411:00-14:30

Flow and visibility

The Davidson is a forest stream and its flow is driven by summer thunderstorms; a 40 mm storm can take it from 80 to 400 cfs in two hours and it drops almost as fast. The catch-and-release reach holds its temperature well because of the rhododendron shade, which is why it fishes in July when the lower river is too warm. After a spate the fish are usually back on the feed within 24 hours.

The insect plate

Aquatic insect side view: Blue Quill (Paraleptophlebia)
Plate 2 · insect, side view

See the matched fly box →