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Au Sable River Mouth Boat Ramp

Au Sable River · Au Sable, Iosco County

Au Sable River Mouth is a 10-lane trailer boat ramp on Au Sable River in Au Sable, Michigan, with a fee or pass required, 114 trailer parking spaces and restrooms. It is managed by Tawas Point State Park.

Launch
Trailer launch
Lanes
10
Fees
Annual pass: $15 (Michigan Recreation Passport, Michigan vehicles, bought with plate renewal. Out-of-state vehicles $42 a year or $12 a day)
Trailer parking
114 spaces
Restroom
Yes
Dock
Yes
Hours
Open 24 hours
Nearest town
46 mi from Alpena

Managed by Tawas Point State Park · Website

Directions

Today

Near this ramp

Gas

Campgrounds

Marinas

Places © OpenStreetMap contributors. Call ahead for hours.

Fish in Au Sable River (Iosco County)

Also recorded:

Michigan state records for these fish
FishRecordYearCaught in
Common Carp61 lb 8 oz1974Wolf Lake
Chinook Salmon47 lb 14 oz2021Lake Michigan
Salmon32 lb 10 oz1981Lake Michigan
Rainbow Trout26 lb 8 oz1975Lake Michigan
Smallmouth Bass10 lb2016Indian River

From official Michigan record lists: source

Species recorded here since 1990 (GBIF). Check state regulations for seasons and limits.

Before you launch in Michigan

Michigan boating laws: education, age limits and life jackets

Links go to official Michigan agency pages.

All 4 ramps on Au Sable River (Iosco County) · All ramps in Iosco County

New to launching? Read how to launch a boat and ramp etiquette.

Nearby boat ramps

Page updated Oct 27, 2026. Ramp details from the Michigan Department of Natural Resources and OpenStreetMap.