2026 regulation year
Au Sable River — Mason Tract 2026 — Michigan Fishing Regulations
Michigan statewide rules apply unless overridden below.
Last updated
Au Sable River — Mason Tract carries a special-regulation overlay on top of Michigan's 2026 fishing rules. Verify the agency booklet before launching: in-season changes are not yet wired to this page.
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State-level special regulation
Flies-only, 15 in trout minimum, no-kill stretch
Source: Michigan special-water list
Official source
Michigan Department of Natural Resources publishes the authoritative 2026 Michigan fishing regulations. Special-regulation lakes and rivers are listed in the agency booklet — always verify before fishing.
Visit official Michigan fishing regulations →
Emergency-order channel
In-season closures, slot-limit changes, and run-count-driven harvest pauses are posted to Michigan Department of Natural Resources's emergency-order feed — check it before any Michigan trip during the active season.
Other special-regulation waters in Michigan
- Au Sable River mainstream (Oscoda County)
- Au Sable River, North Branch (Crawford County)
- Au Sable River, South Branch (Crawford County)
- Betsie River
- Big Manistee
- Black Lake (Cheboygan County)
- Black River (Otsego / Montmorency Counties)
- Boardman River
- Cooks Run (Iron County)
- Detroit River (border with ON)
- Duck Creek (Gogebic County)
- Escanaba River (Delta County)
Frequently asked questions
- What special fishing regulations apply at Au Sable River — Mason Tract?
- Au Sable River — Mason Tract carries one special-regulation overlay that overrides Michigan's statewide 2026 rules. It reads: "Flies-only, 15 in trout minimum, no-kill stretch." Every overlay on this water body is listed in full above.
- Do I need a fishing license to fish Au Sable River — Mason Tract?
- Yes. Au Sable River — Mason Tract is in Michigan, so a valid Michigan fishing license is required just as it is anywhere else in the state, issued by Michigan Department of Natural Resources. The special regulations on this page change the bag, size, slot, or gear rules for Au Sable River; they do not waive the license requirement. Free-fishing days and youth exemptions follow the statewide Michigan rules.
- Do Au Sable River — Mason Tract's special rules replace Michigan's statewide limits?
- Only where they conflict. Michigan's statewide 2026 regulations apply on Au Sable River by default; the overlays above replace the matching statewide rule for the species or gear they name, while everything not specifically overridden still follows the statewide rule. When a water-body rule and the statewide rule disagree, the water-body rule wins.