Snake River (Hagerman Reach / Tailwater)
river in Idaho
The Snake River in southern Idaho near Hagerman and Twin Falls has productive tailwater stretches, good access, and consistent trout fishing year-round.
Conditions right now
No USGS gauge is linked to this water yet, so we can't chart flows.
What's working on Snake River
- 01Blue-Winged Olive (BWO) and Pale Morning Dun (PMD) hatches are providing intermittent dry fly action, especially during warmer afternoon windows.
- 02Larger October Caddis are also a significant fall food source, making their presence known in various stages.
- 03Subsurface activity is consistent with midges, scuds, and fish eggs, which are critical for Steelhead, Whitefish, and Grayling preparing for winter.
- 04Focus on deeper runs, current seams, and tailouts where fish are holding in slightly slower water.
- 05A mix of dry flies for rising fish and weighted nymphs or streamers for subsurface feeders will be key to success.
Past reports week by week
8 weeksWhat to tie on
Picked from reports, hatches and the season. Tap a fly for the recipe and where else it works.
Comet
A strong attractor pattern, excellent for targeting Steelhead during their fall runs in the Snake River.
Buy at AmazonBlue-Winged Olive (BWO) Comparadun
Fall BWO hatches are a consistent event, especially on overcast days, making this a crucial dry fly for selective Whitefish, Grayling, and Steelhead.
Buy at AmazonBlood Dot Egg
Fall is prime egg season. This pattern is highly effective for Steelhead, Whitefish, and Grayling keying in on salmon/trout eggs in the drift.
Buy at AmazonPMDs (Pale Morning Duns)
Pale Morning Duns are actively hatching in fall, providing a key food source for opportunistic Whitefish and Grayling.
October Caddis (Dry)
The largest caddis hatch of the year in many Western rivers occurs in the fall, making this a prime pattern for Grayling and Whitefish.
Buy at AmazonZebra Midge
Midges are a primary and consistent food source in tailwaters year-round, and this pattern is highly effective in colder fall conditions for Whitefish and Grayling.
Buy at AmazonFlashback Hare's Ear Nymph
An excellent general searching nymph, mimicking various aquatic insects active in the currents, effective year-round for Steelhead, Whitefish, and Grayling.
Tungsten Bead Pat's Rubber Legs
This weighted stonefly nymph is excellent for getting deep in the current, imitating large dislodged insects, a crucial tactic for Steelhead and Whitefish in fall.
Buy at AmazonSoft Hackle Wet (Partridge & Orange)
Effective for imitating caddis pupae and emergers, which can still be active in fall, and a versatile pattern for swinging through Steelhead, Whitefish, and Grayling lies.
Buy at AmazonWhere to fish and who to ask
Hagerman Reach
Consistent tailwater fishing below Milner Dam with good access and large trout.
Twin Falls / Shoshone Falls Area
Deep pools and runs near falls and access points that hold bigger trout and provide scenic fishing.
Fly shops within 40 miles
Idaho Troutfitters
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Idaho season by season
What changes on the water through the year, with the flies for each season.
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Quick answers
Common questions about Snake River (Hagerman Reach / Tailwater).
What flies work best on Snake River (Hagerman Reach / Tailwater)?
Our top scored fly patterns for Snake River (Hagerman Reach / Tailwater) right now are Flashback Hare's Ear Nymph (80% confidence), Mother's Day Caddis (80% confidence), Jujubaetis (80% confidence). These picks are scored from recent fishing reports, hatch data, and seasonal patterns.
What fish species are in Snake River (Hagerman Reach / Tailwater)?
Snake River (Hagerman Reach / Tailwater) holds Steelhead, Whitefish, Grayling. See the species links on this page for fly recommendations and seasonal behavior for each.
What are current flow conditions on Snake River (Hagerman Reach / Tailwater)?
Live USGS streamflow readings for Snake River (Hagerman Reach / Tailwater) are charted in the sidebar of this page and updated automatically from the nearest gauge.
Is Snake River (Hagerman Reach / Tailwater) fishing well right now?
We publish a fresh bite report for Snake River (Hagerman Reach / Tailwater) each week based on recent on-the-water intel. The current report — with conditions, hatches, and what's producing — is on this page.