ST. JOSEPH RIVER AT NILES, MI

ST. JOSEPH RIVER MI USGS

ST. JOSEPH RIVER AT NILES, MI (04101500) is a real-time streamflow monitoring station on the ST. JOSEPH 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. 26 fish species are associated with this station in public fish records.

USGS site number
04101500
Operated by
U.S. Geological Survey
State
MI
Coordinates
41.8292, -86.2597

Live conditions & history

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7-day weather

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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. Joseph River At Niles, Mi has 26 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), Spotfin Shiner (Cyprinella spiloptera), European Carp (Cyprinus carpio), Northern Pike (Esox lucius), Rainbow Darter (Etheostoma caeruleum), and 21 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
26 species
from 65 individual records
Observed
Jun 30, 2016 – Jun 19, 2026
65 dated records

Sources

🪰 Hatch Calendar

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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.

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