Updated October 15, 2026
    Access point

    Game Preserve Sectionon Pack River

    Access within the Pack River Delta Wildlife Management Area, offering diverse fishing.
    Pack River reportDirections48.2719°N, 116.5312°W
    Bite report · week of Oct 4

    October Caddis hatch is a major fall event

    1. 01October Caddis hatch is a major fall event, offering good dry fly action.
    2. 02Blue-Winged Olive (BWO) and Pale Morning Dun (PMD) hatches are active, especially on warmer, overcast afternoons.
    3. 03Trout are keying into eggs as fall spawning activity occurs.
    4. 04Predatory Bull Trout are looking for larger food sources like stonefly nymphs and baitfish.
    5. 05Deeper pools, slower runs, and current seams are key holding lies for trout in cooling waters.

    What to tie on at Game Preserve Section

    Picked from recent reports for this stretch.

    dry80%

    Yellow Sally

    #14#16#18

    Yellow Sally stoneflies are abundant along freestone streams in summer, drawing aggressive strikes from trout.

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    terrestrial80%

    Flying Ant

    #14#16#18

    Late summer often brings significant flying ant events, providing an opportunistic food source for trout, especially near wooded sections.

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    nymph80%

    Tunghead Hot Spot Pheasant Tail Jig

    #14#16#18

    An excellent weighted nymph for getting down to fish feeding on active mayfly nymphs, providing added movement to trigger strikes in spring flows. Targets Westslope Cutthroat, Rainbow, and Bull Trout.

    nymph80%

    Tungsten Bead Pat's Rubber Legs

    #4#6#8#10

    A year-round effective stonefly nymph, particularly good in spring before major stonefly hatches. Excellent for getting down to Rainbow Trout, Cutthroat Trout, and Bull Trout.

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    nymph80%

    TH Duracell Jig

    #14#16#18

    An effective jig nymph for prospecting deep runs and riffles, targeting Westslope Cutthroat Trout, Rainbow Trout, and Bull Trout in spring conditions.

    nymph80%

    Flashback Pheasant Tail Nymph

    #14#16#18

    An excellent general searching nymph for early spring, mimicking various mayfly nymphs that are active year-round and particularly as BWOs begin to emerge, targeting Westslope Cutthroat Trout and Rainbow Trout.

    streamer80%

    Pine Squirrel Leech (Olive)

    #14#16

    Small leech patterns effectively mimic sluggish baitfish and annelids in cold water, enticing strikes from larger, lethargic trout in early spring, including Westslope Cutthroat Trout, Rainbow Trout, and Bull Trout.

    streamer80%

    Black Woolly Bugger

    #4#6#8

    A versatile streamer that imitates leeches and sculpins active year-round. Slow-stripped through deep holes, it's a high-percentage searching pattern for lethargic spring Rainbow Trout, Cutthroat Trout, and Bull Trout.

    dry80%

    Mother's Day Caddis

    #14#16#18

    The prolific Mother's Day Caddis hatch is expected in late April through May, making this dry fly a perfect imitation for adult caddis, targeting Rainbow Trout and Cuttbows (Cutthroat hybrids).

    Idaho season by season

    What changes on the water through the year, with the flies for each season.

    Fly shops nearby

    Local flies, current advice and guided trips.

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