All waters · Michigan · Au Sable River
Au Sable River, MI
River spanning Crawford/Oscoda/Iosco counties, Michigan. Michigan's premier brown trout fly-fishing river. Holy Waters section (Burton's Landing → Wakeley Bridge, ~9 mi near Grayling) is Type 4: flies-only, no-kill, no bait, no wading. Hex mayfly hatch late June legendary.
Overall bite score
Scored 14 min ago · recomputed every 30 minutes
Each instrument reads 0 to 100. The score is their weighted blend, tuned for rivers and streams. No black box: every reading names its source.
What swims here
8 tracked species in Au Sable River, with the months each fishes best.
Water facts
Grayling area (Holy Waters fly-only/no-kill/no-bait/no-wading section). Mio Pond, Foote Pond. Float-trip oriented.
See the full forecast for Au Sable River in the app: best windows, 7-day outlook, what to bring, and offline regulations. The score and essentials are free.
Not legal advice. Always verify with official state regulations.