ST. MARYS RIVER AT SAULT STE. MARIE, ONTARIO

ST. MARYS RIVER MI USGS

ST. MARYS RIVER AT SAULT STE. MARIE, ONTARIO (04127885) is a real-time streamflow monitoring station on the ST. MARYS 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. 51 fish species are associated with this station in public fish records.

USGS site number
04127885
Operated by
U.S. Geological Survey
State
MI
Coordinates
46.4983, -84.3153

Live conditions & history

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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.

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 nearby

St. Marys River At Sault Ste. Marie, Ontario has 51 fish species documented via iNaturalist research-grade observations within 10 km. These community-sourced records indicate fish presence in the vicinity.

Species include: Rock Bass (Ambloplites rupestris), Brown Bullhead (Ameiurus nebulosus), Eyetail Bowfin (Amia ocellicauda), Freshwater Drum (Aplodinotus grunniens), White Sucker (Catostomus commersonii), and 46 others.

One species above is flagged non-native or potentially invasive (European Carp). 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
51 species
from 200 individual records
Observed
Jul 10, 2016 – Jul 27, 2026
200 dated records

Sources