AU GRES RIVER AT S MACKINAW RD NR AU GRES, MI
AU GRES RIVER MI USGS
AU GRES RIVER AT S MACKINAW RD NR AU GRES, MI (04138536) is a real-time streamflow monitoring station on the AU GRES RIVER in MI, operated by the U.S. Geological Survey. Riverbot tracks its streamflow and alerts anglers the moment flow and temperature hit their fishing window. 23 fish species are associated with this station in public fish records.
- USGS site number
- 04138536
- Operated by
- U.S. Geological Survey
- State
- MI
- Coordinates
- 44.0802, -83.6859
Live conditions & history
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Fishing regulations
MI state-wide default defaultDefault area rules for fish in the public records above. A grey row means the release has no canonical regulation match for that species.
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Walleye Open · Harvest allowed within limits Open all year Details
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Open all year
- Daily limit
- 5
- Size rule
- 15"
Official rule · retrieved Aug 2, 2026
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Yellow Perch Open · Harvest allowed within limits Open all year Details
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Open all year
- Daily limit
- 25
Official rule · retrieved Aug 2, 2026
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Black Crappie No season data
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Black Redhorse No season data
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Bullheads No season data
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Central Stoneroller No season data
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Emerald Shiner No season data
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European Carp No season data
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Freshwater Drum No season data
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Golden Redhorse No season data
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Largemouth Bass No season data
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Longnose Dace No season data
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Longnose Gar No season data
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Pugnose Shiner No season data
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Rainbow Darter No season data
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Redhorse Suckers No season data
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River Chub No season data
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Rosyface Shiner No season data
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Round Goby No season data
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Sand Shiner No season data
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Stonecat No season data
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Western Blacknose Dace No season data
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White Sucker No season data
Effective Jan 1, 2026 – Sep 14, 2027 · evaluated for 2026-09-11 in America/Detroit
Regulations shown are for reference only and may not reflect in-season changes. Always verify current regulations with the Michigan Fishing Regulations before fishing.
Fish recorded near this station
Community observations nearbyAu Gres River At S Mackinaw Rd Nr Au Gres, Mi has 23 fish species documented via iNaturalist research-grade observations within 10 km. These community-sourced records indicate fish presence in the vicinity.
Species include: Bullheads (Ameiurus), Freshwater Drum (Aplodinotus grunniens), Central Stoneroller (Campostoma anomalum), White Sucker (Catostomus commersonii), European Carp (Cyprinus carpio), and 18 others.
- Bullheads Ameiurus
- Freshwater Drum Aplodinotus grunniens
- Central Stoneroller Campostoma anomalum
- White Sucker Catostomus commersonii
- European Carp Cyprinus carpio non-native
- Rainbow Darter Etheostoma caeruleum
- Longnose Gar Lepisosteus osseus
- Largemouth Bass Micropterus nigricans
- Pugnose Shiner Miniellus anogenus
- Sand Shiner Miniellus stramineus
- Redhorse Suckers Moxostoma
- Black Redhorse Moxostoma duquesnei
- Golden Redhorse Moxostoma erythrurum
- Round Goby Neogobius melanostomus non-native
- River Chub Nocomis micropogon
- Emerald Shiner Notropis atherinoides
- Rosyface Shiner Notropis rubellus
- Stonecat Noturus flavus
- Yellow Perch Perca flavescens
- Black Crappie Pomoxis nigromaculatus
- Longnose Dace Rhinichthys cataractae
- Western Blacknose Dace Rhinichthys obtusus
- Walleye Sander vitreus
2 species above are flagged non-native or potentially invasive (European Carp, Round Goby). Records show what has been observed near this station, not what is native to the watershed.
Where these records come from
- Evidence
- Community observations nearby
- Research-grade community observations (iNaturalist) recorded near this station, not a formal survey.
- Records
- 23 species
- from 34 individual records
- Observed
- Aug 20, 2004 – Jun 6, 2026
- 34 dated records
Sources
- iNaturalist research-grade fish observations — 34 records