Updated October 15, 2026

    Bear River (Southeast Idaho)

    river in Idaho

    While parts of the Bear River are slower, the sections above Bear Lake and below Oneida Narrows offer good moving water for fly anglers. It's a river that can produce large trout for those willing to explore.

    Bite report · week of Oct 4

    What's working on Bear River

    1. 01Mild fall temperatures around 64°F with clear skies are making for pleasant fishing conditions on the Bear River.
    2. 02Lingering October Caddis activity is providing dry fly opportunities, especially in the late afternoons.
    3. 03Blue-Winged Olive hatches are becoming more consistent, particularly on overcast days.
    4. 04Subsurface fishing with nymphs and streamers is highly effective as trout shift their feeding patterns with cooling water.
    5. 05Egg patterns are becoming increasingly important as fall progresses, mimicking spawning activity.

    Past reports week by week

    1 weeks

    What to tie on

    Picked from reports, hatches and the season. Tap a fly for the recipe and where else it works.

    dry

    October Caddis

    Recent intelligence signals from early fall (September 5th) indicate aggressive trout taking October Caddis. This hatch is seasonally active in early October on many freestone rivers.

    egg

    Blood Dot Egg

    Salmon/trout egg
    #10#12#14

    Fall is prime egg season for trout below spawning fish, and this pattern effectively imitates salmon/trout eggs, which are a crucial food source for opportunistic feeders.

    Buy at Amazon
    streamer

    Black Woolly Bugger

    #4#6#8

    As water temperatures cool in the fall, larger trout become more aggressive, actively chasing streamers that imitate leeches and baitfish in deeper pools and runs.

    dry

    Blue-Winged Olive Comparadun

    #18#20#22

    Blue-Winged Olives are a consistent fall hatch on many freestone rivers, especially on overcast days. This low-profile dry fly is excellent for selective trout feeding on emergers and adults.

    dry

    Pat's Rubber Legs

    #14#16

    Larger stonefly nymphs are a year-round food source for trout. This weighted pattern is excellent for getting down to deeper holding fish in fall flows and acting as a lead fly in a nymph rig.

    Buy at Amazon
    streamer

    Pine Squirrel Leech (Olive)

    #14#16

    Small leech patterns, especially in olive, effectively mimic sluggish baitfish and annelids in cooling fall waters, enticing strikes from larger, lethargic trout.

    nymph

    Midge

    #20#22#24

    Midges are a primary and consistent food source year-round in tailwaters and spring-fed sections like the Black Canyon of the Bear River, making them effective in fall.

    nymph

    Flashback Hare's Ear Nymph

    #14#16#18

    A classic and versatile searching nymph, the Flashback Hare's Ear effectively mimics various aquatic insects and scuds active in fall currents.

    dry

    Purple Haze

    Attractor (no specific hatch)
    #14#16#18

    Recent early fall intelligence signals (September 5th) indicated this attractor pattern was effective for aggressive trout, suggesting it may still draw interest in early October.

    Buy at Amazon
    wet fly

    Soft Hackle Wet (Partridge & Orange)

    Caddis pupa/emerger
    #12#14#16

    Caddis hatches can continue into fall, and this wet fly effectively imitates caddis pupae and emergers when swung through current seams and riffles.

    Buy at Amazon

    Where to fish and who to ask

    1Cleveland Access2Franklin Access3Oneida Narrows Below Dam4Preston Valley Access
    Access
    1

    Cleveland Access

    Upstream access points from Preston, offering different river characteristics.

    42.150°N 111.900°WDirections
    2

    Franklin Access

    Downstream areas near the Utah border, providing various wading spots.

    42.020°N 111.820°WDirections
    3

    Oneida Narrows Below Dam

    Tailwater-like conditions below the Oneida Narrows Dam, offering consistent flows.

    42.120°N 111.700°WDirections
    4

    Preston Valley Access

    Public access points located near the town of Preston.

    42.080°N 111.850°WDirections

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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 Bear River (Southeast Idaho).

    What flies work best on Bear River (Southeast Idaho)?

    Our top scored fly patterns for Bear River (Southeast Idaho) right now are October Caddis (95% confidence), Blood Dot Egg (90% confidence), Black Woolly Bugger (85% confidence). These picks are scored from recent fishing reports, hatch data, and seasonal patterns.

    What fish species are in Bear River (Southeast Idaho)?

    Bear River (Southeast Idaho) holds Walleye. See the species links on this page for fly recommendations and seasonal behavior for each.

    Is Bear River (Southeast Idaho) fishing well right now?

    We publish a fresh bite report for Bear River (Southeast Idaho) each week based on recent on-the-water intel. The current report — with conditions, hatches, and what's producing — is on this page.