Updated October 15, 2026
    Access point

    Lower Section Accesson Poindexter Slough

    Access to the slower, clearer lower stretches of the slough.
    Poindexter Slough reportDirections45.1950°N, 112.6400°W

    River flow last 30 days

    050100Sep 16Sep 22Sep 2766 cfs
    Flow now
    108cfs
    Above the typical range (60–71 cfs)
    Last 7 days
    Rising
    65 to 95 cfs
    Weather now
    61°F
    Clear Sky, wind 6 mph S
    Bite report · week of Oct 4

    October Caddis hatches are becoming a significant factor

    1. 01October Caddis hatches are becoming a significant factor, offering good dry fly opportunities.
    2. 02Blue-Winged Olives are actively emerging, requiring precise presentations for selective trout.
    3. 03Subsurface nymphing with midge and general mayfly imitations remains consistently productive.
    4. 04Streamer fishing is effective for targeting larger, predatory Brown Trout.
    5. 05Terrestrial patterns like hoppers and ants can still entice strikes on sunny, warmer fall afternoons.

    What to tie on at Lower Section Access

    Picked from recent reports for this stretch.

    terrestrial90%

    Hopper #10

    #6#8#10

    Grasshopper activity is peaking during the summer months, making this a prime imitation for opportunistic trout along grassy banks, supported by regional intelligence.

    dry90%

    Blue-Winged Olive Comparadun (BWO)

    #18#20#22

    Blue-Winged Olives are actively emerging in the fall, as indicated by regional reports. This low-profile dry fly is excellent for selective trout feeding on emergers and adults in the spring-creek-like conditions of Poindexter Slough.

    dry90%

    October Caddis (Dry)

    #6#8#10

    October Caddis are a significant fall hatch, with regional reports indicating they are becoming a factor. This pattern effectively imitates the adult stage.

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    terrestrial90%

    Beetle #14

    #14#16

    Terrestrial beetles are actively falling into the water from streamside vegetation, a consistent food source for trout in summer, also supported by regional intelligence.

    terrestrial85%

    Hoppers

    Similar to the Chernobyl Ant, hopper patterns are still effective in early fall, particularly on warmer days along grassy banks. Regional reports confirm strong terrestrial activity.

    dry85%

    PMD Comparadun

    #16#18

    Pale Morning Duns are actively hatching, and this low-profile pattern is excellent for selective trout feeding on adults and emergers in the spring creek's calmer sections, consistent with regional reports.

    dry85%

    Yellow Sally #16

    #14#16

    Yellow Sally stoneflies are abundant along freestone streams in summer and are drawing aggressive strikes, making this a highly effective dry fly attractor.

    dry85%

    Trico Spinner #22

    #20#22#24

    Trico spinner falls are occurring, and this tiny dry fly is crucial for targeting selective trout keying on these abundant, spent mayflies in slower water, aligning with regional reports.

    nymph85%

    Pheasant Tail Nymph

    #14#16#18#20

    This classic nymph imitates various active mayfly nymphs, including PMDs, which are a primary food source subsurface and consistently effective.

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    Montana season by season

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

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