Updated October 15, 2026
    Access point

    Milltown State Parkon Clark Fork River

    Offers historical context and fishing access below the former dam site.
    Clark Fork River reportDirections46.8778°N, 113.8407°W

    Conditions right now

    No USGS gauge is linked to this water yet, so we can't chart flows.

    Weather now
    62°F
    Clear Sky, wind 7 mph W
    Bite report · week of Oct 4

    October Caddis are actively hatching

    1. 01October Caddis are actively hatching, offering significant dry fly action.
    2. 02Blue-Winged Olives (BWOs) are beginning their fall emergence, particularly on overcast afternoons.
    3. 03Mahogany Duns are also making a crucial fall appearance.
    4. 04Terrestrial patterns like Hoppers and Chernobyl Ants can still be effective for opportunistic feeders.
    5. 05Subsurface nymphing with patterns like the Flashback Pheasant Tail and streamer fishing with Pine Squirrel Leeches will be productive as water cools.

    What to tie on at Milltown State Park

    Picked from recent reports for this stretch.

    streamer80%

    Woolly Bugger

    #2#4#6#8#10

    A reliable year-round streamer, effective for imitating leeches and baitfish, excellent for enticing aggressive predatory trout in the Clark Fork River.

    Buy at Amazon
    dry80%

    Chernobyl Ant

    #8#10#12

    Larger terrestrial patterns like the Chernobyl Ant continue to entice aggressive strikes, especially for cutthroat and opportunistic trout seeking substantial surface food.

    Buy at Amazon
    dry80%

    Mahogany Dun

    #14#16#18

    Mahogany Duns are starting to hatch, offering another excellent dry fly opportunity for opportunistic trout.

    Buy at Amazon
    dry80%

    Chubby Chernobyl

    #14#16

    A productive attractor dry fly, imitating larger terrestrials or stoneflies, ideal for drawing aggressive strikes from opportunistic trout on the Clark Fork River during summer.

    terrestrial80%

    Hopper

    #6#8#10

    Terrestrial activity, particularly with grasshoppers, remains strong along the banks, making this an effective attractor for opportunistic feeders looking for a substantial meal.

    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.

    nymph80%

    Tungsten Bead Pat's Rubber Legs

    #4#6#8#10

    Year-round, especially in winter and before stonefly hatches. A heavy stonefly nymph to get deep.

    Buy at Amazon
    nymph80%

    Tactical Peeping Caddis TH Jig

    #14#16#18

    Highly recommended for targeting larger fish on undercut banks. Caddis are actively emerging in spring.

    streamer80%

    Pine Squirrel Leech (Olive)

    #14#16

    Small leech patterns like this effectively mimic sluggish baitfish and annelids in cold water, enticing strikes from larger, lethargic trout in early spring.

    Montana 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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