Updated October 15, 2026
    Access point

    Mio Dam / Mio Accesson Au Sable River

    Lower Au Sable near the Mio Dam is a favorite early-season trout spot and common access for float trips.
    Au Sable River reportDirections44.6172°N, 84.1498°W
    Bite report · week of Oct 4

    Trout species (Brown

    1. 01Trout species (Brown, Brook, Rainbow) are actively feeding to build reserves for winter.
    2. 02Egg patterns are highly effective, especially near any areas where trout or salmon may be spawning.
    3. 03Streamers imitating leeches and baitfish are provoking aggressive strikes from larger trout.
    4. 04Blue-Winged Olive hatches are providing intermittent dry fly opportunities on overcast days.
    5. 05Nymphing with small patterns like midges and scuds remains a consistent producer.

    What to tie on at Mio Dam / Mio Access

    Picked from recent reports for this stretch.

    Michigan 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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