Updated October 15, 2026

    Lower Stanislaus River

    river in California

    The 'Lower Stan' is a popular destination due to its reliable flows and consistent trout populations. It fishes well with nymphs, streamers, and dry flies depending on the season and hatch. Public access is available at various points.

    Conditions right now

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

    Weather now
    85°F
    Clear Sky, wind 5 mph SE
    Bite report · week of Oct 4

    Blue-Winged Olives (BWOs) are hatching

    1. 01Blue-Winged Olives (BWOs) are hatching, providing dry fly opportunities.
    2. 02October Caddis are active, with large adults on the water and pupae emerging.
    3. 03Midges remain a consistent, year-round food source in the tailwater.
    4. 04Salmon and Steelhead runs are expected, making egg patterns highly effective.
    5. 05Streamers imitating baitfish and leeches are producing well for aggressive fish.

    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 (Dry)

    October Caddis (Dicosmoecus) adult
    #6#8#10

    The October Caddis hatch is a significant event in many western rivers during the fall. This large dry fly is perfect for imitating the adult caddis on the water, attracting aggressive strikes.

    Buy at Amazon
    streamer

    Pine Squirrel Leech (Olive)

    #14#16

    Small leech patterns effectively mimic sluggish baitfish and annelids in cold water, triggering territorial strikes from larger, lethargic trout, salmon, and steelhead in the Lower Stanislaus River.

    nymph

    Frenchie

    General nymph attractor
    #14#16#18

    This versatile nymph imitates various small subsurface mayfly and caddis larvae, making it an excellent searching pattern for prospecting deeper runs in the Lower Stanislaus River during the fall.

    Buy at Amazon
    dry

    Blue-Winged Olive (BWO) Comparadun

    Baetis (BWO) adult
    #18#20#22#24

    Fall is prime BWO season on the Lower Stanislaus River. This low-profile dry fly is excellent for selective trout feeding on emergers and adults during the consistent hatches.

    Buy at Amazon
    nymph

    Flashback Pheasant Tail Nymph

    #14#16#18

    A versatile nymph that effectively imitates various mayfly nymphs, including the abundant BWO nymphs active subsurface throughout the fall on the Lower Stanislaus River.

    dry

    Glo Bug (Orange)

    #14#16

    With salmon and steelhead runs entering the Lower Stanislaus River in the fall, opportunistic trout and other species will be actively feeding on loose eggs. This pattern is highly effective in these conditions.

    streamer

    Woolly Bugger (Olive)

    #4#6#8

    A highly versatile streamer pattern that imitates leeches and baitfish, which are consistent food sources for predatory trout, migrating salmon, steelhead, and resident striper bass in the cooler fall flows of the Lower Stanislaus River.

    nymph

    Zebra Midge

    Midge pupa (Chironomidae)
    #18#20#22#24

    Midges are a primary and consistent food source in tailwaters like the Lower Stanislaus River year-round. This weighted pattern is essential for getting down to picky fish in cooler fall water.

    Buy at Amazon

    Where to fish and who to ask

    The Trout Spot · Arnold1Knights Ferry Recreation Area2Orange Blossom Recreation Area3Tulloch Dam (below)
    AccessFly shop
    1

    Knights Ferry Recreation Area

    Excellent access with trails along the river, historic bridge.

    37.819°N 120.789°WDirections
    2

    Orange Blossom Recreation Area

    Another good access point with varied water.

    37.800°N 120.840°WDirections
    3

    Tulloch Dam (below)

    Productive tailwater section, often good for nymphing.

    37.864°N 120.678°WDirections

    Fly shops within 40 miles

    38mi

    The Trout Spot

    Arnold, CA

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    California season by season

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

    Read before you go

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    Quick answers

    Common questions about Lower Stanislaus River.

    What flies work best on Lower Stanislaus River?

    Our top scored fly patterns for Lower Stanislaus River right now are October Caddis (Dry) (80% confidence), Pine Squirrel Leech (Olive) (80% confidence), Frenchie (80% confidence). These picks are scored from recent fishing reports, hatch data, and seasonal patterns.

    What fish species are in Lower Stanislaus River?

    Lower Stanislaus River holds Salmon, Steelhead. See the species links on this page for fly recommendations and seasonal behavior for each.

    Is Lower Stanislaus River fishing well right now?

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