ROCK RIVER AT JEFFERSON, WI

ROCK RIVER WI USGS

ROCK RIVER AT JEFFERSON, WI (05426031) is a real-time river monitoring station on the ROCK RIVER in WI, operated by the U.S. Geological Survey. Riverbot tracks its river conditions, including water level and keeps recent, datum-labelled water-level history for anglers. 35 fish species are associated with this station in public fish records.

USGS site number
05426031
Operated by
U.S. Geological Survey
State
WI
Coordinates
42.9961, -88.8073

Live conditions & history

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Fishing regulations

WI 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.

WI 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 2026-09-10 in America/Chicago

Regulations shown are for reference only and may not reflect in-season changes. Always verify current regulations with the Wisconsin Hook and Line Fishing Regulations before fishing.

Fish recorded near this station

Community observations nearby

Rock River At Jefferson, Wi has 35 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), Yellow Bullhead (Ameiurus natalis), Eyetail Bowfin (Amia ocellicauda), Freshwater Drum (Aplodinotus grunniens), Brook Stickleback (Culaea inconstans), and 30 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
35 species
from 79 individual records
Observed
Jul 3, 2007 – Jul 19, 2026
79 dated records

Sources