River Flows

Montana stream flow information for trout fishermen

During the run off season our rivers can experience dramatic incline and decline levels in a short amount of time. The USGS publishes detailed information on each river and stream in Montana along with historical graphs.  The graphs associated with each river are very telling to an angler if they should be fishing a particular Montana water that day.  Check the graphs and the temp readings to ensure your water of choice is fishable and running clean.

We’re not able to directly display information about Clark Canyon Reservoir’s (on the Beaverhead River near Dillon, MT) outflow on our website. If you’d like information on this fishery, please visit this Clark Canyon Reservoir link.

  • Beaverhead River at Barretts MT (#1)
    • Discharge, cubic feet per second: Not available.
    • Gage height, feet: Not available.
  • Beaverhead River at Dillon MT (#2)
    • Discharge, cubic feet per second: Not available.
    • Gage height, feet: Not available.
  • Ruby River above reservoir near Alder, MT (#3)
    • Discharge, cubic feet per second: 128 cfs
    • Gage height, feet: 3.03 ft
  • Ruby River near Twin Bridges MT (#4)
    • Temperature in degrees Fahrenheit: Not available.
    • Discharge, cubic feet per second: Not available.
    • Gage height, feet: Not available.
  • Beaverhead River at Twin Bridges, MT (#5)
    • Temperature in degrees Fahrenheit: Not available.
    • Discharge, cubic feet per second: Not available.
    • Gage height, feet: Not available.
  • Big Hole River bl Mudd Cr nr Wisdom MT (#6)
    • Discharge, cubic feet per second: Not available.
    • Gage height, feet: Not available.
  • Big Hole River at Maiden Rock nr Divide MT (#7)
    • Discharge, cubic feet per second: Not available.
    • Gage height, feet: Not available.
  • Big Hole River near Melrose MT (#8)
    • Temperature in degrees Fahrenheit: Not available.
    • Discharge, cubic feet per second: Not available.
    • Gage height, feet: 1.60 ft
  • Jefferson River near Twin Bridges MT (#9)
    • Discharge, cubic feet per second: 1060 cfs
    • Gage height, feet: 3.65 ft
  • Jefferson River at Parsons Bdg nr Silver Star, MT (#10)
    • Temperature in degrees Fahrenheit: Not available.
    • Discharge, cubic feet per second: Not available.
    • Gage height, feet: Not available.
  • Jefferson River near Three Forks MT (#11)
    • Discharge, cubic feet per second: 1390 cfs
    • Gage height, feet: 3.72 ft
  • Madison River bl Hebgen Lake nr Grayling MT (#12)
    • Temperature in degrees Fahrenheit: 36.68 deg F
    • Discharge, cubic feet per second: 1150 cfs
    • Gage height, feet: 1.91 ft
  • Madison River bl Ennis Lake nr McAllister MT (#13)
    • Temperature in degrees Fahrenheit: 34.34 deg F
    • Discharge, cubic feet per second: 2020 cfs
    • Gage height, feet: 3.13 ft
  • Missouri River bl Holter Dam nr Wolf Cr MT (#14)
    • Temperature in degrees Fahrenheit: 34.34 deg F
    • Discharge, cubic feet per second: 5400 cfs
    • Gage height, feet: 3.33 ft
  • Bighorn River near St. Xavier, MT (#15)
    • Discharge, cubic feet per second: 3110 cfs
    • Gage height, feet: 60.47 ft
  • Rock Creek near Clinton MT (#16)
    • Temperature in degrees Fahrenheit: Not available.
    • Discharge, cubic feet per second: 141 cfs
    • Gage height, feet: 5.27 ft
  • West Fork Bitterroot River nr Conner MT (#17)
    • Discharge, cubic feet per second: 83 cfs
    • Gage height, feet: 1.29 ft