BirdTroutOpen the map South Branch Au Sable River fishing regulations
The South Branch Au Sable River is designated Type 2 and Type 3 trout water over 18.6 of its 51.6 mapped miles. The season on Type 1 Designated water runs Last Saturday in April–September 30th. The creel limit there is 5 fish, with no more than 3 trout 15“ or greater. Zero (0) Arctic Grayling. 26.6 miles of it are named Blue Ribbon trout stream. The posted signs and the current digest are the authority, not this page.
By designated reach
| Type | Miles | Season | Creel |
|---|---|---|---|
| Type 1 Designated | 18.6 | Last Saturday in April–September 30th | 5 fish, with no more than 3 trout 15“ or greater. Zero (0) Arctic Grayling. |
Gear and tackle
- Type 1 Designated — Artificial lures and all types of natural bait may be used.
Minimum sizes
- Brook trout
- 7″
- Brown trout
- 8″
- Rainbow trout / steelhead
- 10″
- Splake
- 10″
- Lake trout
- 10″
- Chinook salmon
- 10″
- Coho salmon
- 10″
- Pink salmon
- 10″
- Atlantic salmon
- 10″
Type 1 Designated, 18.6 miles of this river.
Blue Ribbon water
| Stretch | From | To | Miles |
|---|---|---|---|
| South Branch AuSable River | Roscommon | Main Branch AuSable | 20.9 |
| Main Branch AuSable River | Upper Section: Co. 612, Lower Section: Mio Dam | Upper Section: Luzerne Co. Pk., Lower Section: Alcona Line | 5.7 |
Named stretches with their own rules
Rules change every year and the posted signs are the authority, not this page. The full state tables, with the date they were read, are on Michigan fishing regulations.
More about South Branch Au Sable River
South Branch Au Sable River — live water temperature, regulations and access
- Is the South Branch Au Sable River good for brook trout?
- Is the South Branch Au Sable River good for brown trout?
- Is the South Branch Au Sable River good for rainbow trout?
- When to fish the South Branch Au Sable River, Michigan
- How to get to the South Branch Au Sable River, Michigan
- South Branch Au Sable River fishing report