Montana Freestone
Bitterroot River Fishing Report, Flows and Hatches
The upper Bitterroot near Darby, below where the East and West forks meet, a forgiving freestone that hatches something nearly every month. This is the benchmark skwala water, fishing hard in March and April when most rivers are still asleep.
Freestone
Montana
3,940 ft
Gauge 12344000
Right now
Live conditions
Flow
Water temp
69°F
Air (This Afternoon)
94°F
Sky / wind
Chance showers and thunderstorms, wind 5 mph
Last updated July 16 at 4:15 PM MDT
The hatch chart
Bitterroot River hatches by month
The emergences that come off the Bitterroot by month, straight from the Rivus hatch model.
| Hatch | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Midge Midge, #20-28 | ||||||||||||
Skwala Stonefly, #8-12 | ||||||||||||
March Brown Mayfly, #14-16 | ||||||||||||
Blue Winged Olive Mayfly, #16-20 | ||||||||||||
Grannom / Mother's Day Caddis Caddis, #14-16 | ||||||||||||
Caddisfly Caddis, #14-16 | ||||||||||||
Salmonfly Stonefly, #4-6 | ||||||||||||
Golden Stonefly Stonefly, #10-12 | ||||||||||||
Little Yellow Sally Stonefly, #14-16 | ||||||||||||
Pale Morning Dun Mayfly, #14-18 | ||||||||||||
Grasshopper / Terrestrial Hopper, #8-12 | ||||||||||||
Trico Mayfly, #18-26 | ||||||||||||
October Caddis Caddis, #8-10 |
How it fishes
A Montana freestone
A freestone river runs free off snowmelt and rain, so it swings hard with the seasons. It blows out and browns up in spring runoff, then drops and warms into summer. The hatches track the water temperature more than the calendar, so you time your trip to the flow and the thermometer.
Flow and gauge
Reading the flows
The Bitterroot is metered at USGS gauge 12344000. Watch the trend as much as the number: a river that is dropping and clearing fishes very differently from one that is coming up.
Access and regulations
Before you fish
Access and the right to fish are the angler’s responsibility, every time. Public access, private water, and seasonal closures vary along the river, so confirm where you can legally stand and wade before you go. We do not point you to a specific spot.
Read the current rules, license requirements, and any special-regulation water before you go. Regulations change season to season, so check them fresh.
Flow and water temperature from USGS, weather from NWS and NOAA, refreshed hourly. Real-time USGS readings are provisional and subject to revision. The hatch chart and river read are Rivus model output.