AU SABLE RIVER AT MIO, MI

Name: AU SABLE RIVER AT MIO, MI streamflow readings
Creator: U.S. Geological Survey

AU SABLE RIVER MI USGS

AU SABLE RIVER AT MIO, MI (04136500) is a real-time streamflow monitoring station on the AU SABLE RIVER in MI, operated by the U.S. Geological Survey. Riverbot tracks its streamflow and water temperature and publishes a 7-day flow forecast so anglers know when conditions line up. 9 fish species are associated with this station in public fish records.

USGS site number: 04136500
Operated by: U.S. Geological Survey
State: MI
Coordinates: 44.6600, -84.1311

Live conditions & history

Create a free account to see live flow, temperature, and recent history for this station

Riverbot reads this gauge every 15 minutes and emails you when the river hits the flow and temperature you fish. Sign up free to unlock the live chart and set your window.

Create a free account Log in

7-day weather

Create a free account to see the 7-day weather forecast for this station

Wind, rain, and sky conditions for the week ahead at this gauge's coordinates — sign up free to plan your next trip around it.

Create a free account Log in

Fishing regulations

MI state-wide default default

Default area rules for fish in the public records above. A grey row means the release has no canonical regulation match for that species.

MI state-wide default default only. Water-specific, national-park, sanctuary, licence, and in-season exceptions may apply.

Northern Pike Open · Harvest allowed within limits Open all year Details Close
- Open all year
  
  Daily limit
  2
  
  Size rule
  24"
  
  Official rule · retrieved Aug 2, 2026
Walleye Open · Harvest allowed within limits Open all year Details Close
- Open all year
  
  Daily limit
  5
  
  Size rule
  15"
  
  Official rule · retrieved Aug 2, 2026
Bluegill No season data
Brook Trout No season data
Brown Trout No season data
Common Sunfishes No season data
Pumpkinseed × Bluegill No season data
Rainbow Trout No season data
Smallmouth Bass No season data

Effective Jan 1, 2026 – Sep 14, 2027 · evaluated for 2026-09-10 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 nearby

Au Sable River At Mio, Mi has 9 fish species documented via iNaturalist research-grade observations within 10 km. These community-sourced records indicate fish presence in the vicinity.

Species include: Northern Pike (Esox lucius), Common Sunfishes (Lepomis), Pumpkinseed × Bluegill (Lepomis gibbosus × macrochirus), Bluegill (Lepomis macrochirus), Smallmouth Bass (Micropterus dolomieu), and 4 others.

Northern Pike Esox lucius
Common Sunfishes Lepomis
Pumpkinseed × Bluegill Lepomis gibbosus × macrochirus
Bluegill Lepomis macrochirus
Smallmouth Bass Micropterus dolomieu
Rainbow Trout Oncorhynchus mykiss
Brown Trout Salmo trutta
Brook Trout Salvelinus fontinalis
Walleye Sander vitreus

Where these records come from

Evidence: Community observations nearby; Research-grade community observations (iNaturalist) recorded near this station, not a formal survey.
Records: 9 species; from 16 individual records
Observed: Sep 30, 2018 – Sep 5, 2025; 16 dated records

Sources

iNaturalist research-grade fish observations — 16 records

🪰 Hatch Calendar

Create a free account to see what's hatching on this water

A month-by-month hatch calendar for this river — which insects are emerging now, hook sizes, and patterns to fish — collected from fly shops and guides who know it.

Create a free account Log in