Au Sable River

Crawford County, Michigan

Class I

Au Sable River is a Class I (self-sustaining wild trout) trout stream in Crawford County, Michigan. Approximately 69.1 miles of classified trout water. Species include brook trout, brown trout, lake trout, rainbow trout, splake.

Stream Classification

Class I — Self-sustaining wild trout population

69.1

Miles

5

Fish Species

0

Access Points

6

Local Guides

Regulations

5 fish, with no more than 3 trout 15“ or greater. Zero (0) Arctic Grayling.; Tackle: Artificial lures and all types of natural bait may be used.; Season: Last Saturday in April through September 30th

Map & Directions

Fish Species

Species found in Au Sable River.

Brook trout Brown trout Lake trout Rainbow trout Splake

Fishing Guides Near Au Sable River

Wolf Pack Guide Service

Fly Fishing Guide

Big River Outfitters

Fly Fishing Guide

Bass Action Charters

Fly Fishing Guide

Due North Guide Service

Fly Fishing Guide

Northern Michigan smallmouth

Casey Richarson

Fly Fishing Guide

Cast Away Guide Service

Fly Fishing Guide

Lakes in Crawford County

Bear Lake

Bear Lake

Bear Lake

Beaver Lake

Other Trout Streams in Crawford County

Barker Creek

Douglas Creek

East Branch Au Sable River

Class I 17.7 mi

Gammey Creek

Kolke Creek

Class I 10.7 mi

Middle Branch Big Creek

Class I 11.5 mi

Plan Your Trip to Au Sable River

Weather forecast — check conditions before you go
Review Michigan trout stream regulations for season dates and limits
A Michigan fishing license is required — buy online

Data sourced from Michigan DNR Division of Fish and Wildlife. Last verified: April 1, 2026. Learn how we maintain this data.