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.

55

Overall bite score

Scored 28 min ago · recomputed every 30 minutes

Water tempModeled52
Pressure trendNOAAsteady60
Flow vs medianUSGS100
SolunarComputedmoon 62% lit63
Recent stockingState data50
Time of dayComputed50
WindNOAA10
Cloud coverNOAA35
PrecipitationNOAA50

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.

Bluegillabundant
Brown Troutabundant
Northern Pikeabundant
Rainbow Troutabundant
Steelheadabundant
Yellow Perchabundant
Brook Troutcommon
Atlantic Salmonpresent

Water facts

TypeRiver
CountyCrawford/Oscoda/Iosco
StateMichigan
WaterFreshwater
USGS gauge04136500

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.

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