Updated October 15, 2026
    Access point

    Hardy / Spring River Float Put-Inson Spring River (Mammoth Spring)

    Put-in locations near Hardy used for scenic float-and-fish trips through classic spring-fed water.
    Bite report · week of Oct 4

    Clear skies and crisp fall temperatures around 56°F

    1. 01Clear skies and crisp fall temperatures around 56°F.
    2. 02USGS flow data is currently unavailable for Spring River (Mammoth Spring).
    3. 03Intermittent Blue-Winged Olive (BWO) hatches expected, especially on overcast days.
    4. 04Active Pale Morning Dun (PMD) hatches providing dry fly opportunities.
    5. 05Midges remain a consistent year-round food source subsurface.
    6. 06October Caddis are a significant fall hatch, with trout keying in on adults and pupae.

    What to tie on at Hardy / Spring River Float Put-Ins

    Picked from recent reports for this stretch.

    nymph80%

    Scud (Pink/Orange)

    #12#14#16#18

    Freshwater shrimp (scuds) are a consistent year-round food source in spring creeks with aquatic vegetation, appealing to Rainbow and Brown Trout in the fall.

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    nymph80%

    Scud (Pink/Orange)

    #12#14#16#18

    The Spring River is rich in aquatic vegetation and crustaceans; scuds are a year-round staple and high-protein winter food source.

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    nymph80%

    Sow Bug

    #14#16#18

    Isopods are extremely prevalent in the Spring River's weedy substrate. A gray or tan sow bug is a go-to nymph in winter.

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    streamer80%

    Woolly Bugger (Olive)

    #4#6#8

    An indispensable streamer imitating leeches and baitfish, effective year-round for aggressive Rainbow and Brown Trout, especially in cooling fall waters.

    dry80%

    Comparadun (BWO)

    #18#20#22#24

    Blue-Winged Olive (BWO) hatches are expected in fall on spring creeks, and this low-profile dry fly is excellent for selective trout feeding on emergers and adults.

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    nymph80%

    Flashback Hare's Ear Nymph

    #14#16#18

    A versatile general searching nymph, effective year-round and mimicking various aquatic insects active in the currents for Rainbow and Brown Trout in fall.

    nymph80%

    Midge Larva

    #20#22#24#26

    Midge larvae are a year-round, consistent food source in spring creeks, especially effective for Rainbow and Brown Trout in cooler fall temperatures.

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    nymph80%

    Zebra Midge

    #18#20#22#24

    Midges are the primary forage in February. The black and silver or red versions are essential for the Spring River's resident rainbows.

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    wet fly80%

    Soft Hackle Wet (Partridge & Orange)

    #12#14#16

    Effective for imitating caddis pupae and emergers, which are active from spring through fall, best fished on the swing.

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    Arkansas 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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