Montana Freestone
Rock Creek Fishing Report, Flows and Hatches
A Blue Ribbon freestone south of Missoula with more than 50 miles of public access and one of the most diverse hatch calendars in Montana. The salmonfly hatch is the annual event.
Freestone
Montana
3,520 ft
Gauge 12334510
Right now
Live conditions
An expert read, in your pocket
Rivus knows your river right now. Live conditions, what’s hatching, and what to tie on, the moment you open it.
When the day turns and nothing’s working, ask Eddy and change the plan.
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The hatch chart
Rock Creek hatch chart
The emergences that come off the Rock Creek by month, straight from the Rivus hatch model.
| Hatch | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Midge Midge, #18-22 | ||||||||||||
Skwala Stonefly, #10-12 | ||||||||||||
Blue Winged Olive Mayfly, #16-20 | ||||||||||||
March Brown Mayfly, #10-14 | ||||||||||||
Grannom / Mother's Day Caddis Caddis, #14-16 | ||||||||||||
Salmonfly Stonefly, #4-6 | ||||||||||||
Caddisfly Caddis, #14-18 | ||||||||||||
Green Drake Mayfly, #10-12 | ||||||||||||
Grey Drake Mayfly, #10-12 | ||||||||||||
Golden Stonefly Stonefly, #6-10 | ||||||||||||
Pale Morning Dun Mayfly, #14-18 | ||||||||||||
Spruce Moth Hopper, #10-14 | ||||||||||||
Grasshopper / Terrestrial Hopper, #8-12 | ||||||||||||
Mahogany Dun Mayfly, #14-16 |
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 Rock Creek is metered at USGS gauge 12334510. 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.