Updated October 15, 2026
    Access point

    Flying B Ranch Accesson Big Creek

    Offers remote float and wade fishing opportunities, often accessed via air.
    Big Creek reportDirections45.0970°N, 114.8690°W
    Bite report · week of Oct 4

    Mild fall weather with clear skies (66°F)

    1. 01Mild fall weather with clear skies (66°F).
    2. 02No USGS flow data, but Big Creek is a remote mountain stream.
    3. 03Fall hatches of October Caddis and Mahogany Duns are active.
    4. 04Blue-Winged Olive hatches are also a possibility on overcast afternoons.
    5. 05Both Westslope Cutthroat Trout and Bull Trout are present and actively feeding.

    What to tie on at Flying B Ranch Access

    Picked from recent reports for this stretch.

    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 and attracting Westslope Cutthroat Trout to the surface.

    dry80%

    Little Black Stonefly

    #16#18#20

    Little Black Stoneflies are an early spring hatch, often providing the first consistent dry fly action of the year and are actively being fed on by Westslope Cutthroat Trout.

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    dry80%

    Blue-Winged Olive Comparadun

    #18#20#22

    Blue-Winged Olives are actively hatching in early spring, especially on overcast days, and this low-profile dry fly is excellent for selective Westslope Cutthroat Trout feeding on emergers and adults.

    nymph80%

    Tunghead Hot Spot Pheasant Tail Jig

    #14#16#18

    This weighted nymph is effective for getting down to Westslope Cutthroat Trout feeding on active mayfly nymphs and provides added movement to trigger strikes in spring flows.

    nymph80%

    Flashback Hare's Ear 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, appealing to Westslope Cutthroat Trout.

    streamer80%

    Woolly Bugger (Olive)

    #4#6#8

    A reliable year-round streamer, effective for imitating leeches and baitfish, especially in the colder spring flows, enticing aggressive strikes from Westslope Cutthroat Trout and Bull Trout.

    dry80%

    Stimulator (Yellow)

    #14#16

    A classic large attractor dry fly, effectively imitating golden stoneflies and large terrestrials, which are active and crucial food sources for opportunistic trout in Idaho's mountain streams during summer.

    terrestrial80%

    Hopper

    #6#8#10

    Grasshoppers and other large terrestrials are a significant food source for trout along the banks of Big Creek throughout summer. This pattern effectively mimics them.

    dry80%

    Yellow Sally

    #14#16#18

    Yellow Sallies (stoneflies) are common along freestone streams in Idaho during the summer months, providing an active insect hatch for rising trout.

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    Idaho season by season

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