Tongue River at Tongue R Dam nr Decker MT

Tongue River MT USGS

Tongue River at Tongue R Dam nr Decker MT (06307500) is a real-time streamflow monitoring station on the Tongue River in MT, operated by the U.S. Geological Survey. Riverbot tracks its streamflow and alerts anglers the moment flow and temperature hit their fishing window. 31 fish species are associated with this station in public fish records.

USGS site number
06307500
Operated by
U.S. Geological Survey
State
MT
Coordinates
45.1413, -106.7714

Live conditions & history

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Fishing regulations

Eastern District zone 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.

Eastern District zone 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/Denver

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

Fish recorded near this station

Sampled in this watershed

Tongue River at Tongue R Dam nr Decker MT has documented fish occurrence data from USGS Presence/Absence sampling in the HUC8 watershed 10090101 containing this station. The dataset includes 31 species with recorded observations.

Species include: rock bass (Ambloplites rupestris), black bullhead (Ameiurus melas), freshwater drum (Aplodinotus grunniens), river carpsucker (Carpiodes carpio), longnose sucker (Catostomus catostomus), and 26 others.

Where these records come from

Evidence
Sampled in this watershed
Fish were sampled elsewhere in the same watershed — a provincial or federal survey nearby, not at the gauge itself.
Records
31 species
from 31 individual records
Observed
Jun 30, 2004 – Jun 26, 2015
14 dated records

Sources