Rock Creek

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Rock Creek

Updated 04/03/2021 at 7:35pm

Conditions At-a-glance


Weather Forecast

Our Report

Rock Creek spring fly fishing


Overnight lows will keep the water temps down a bit but could warm as much as 5-8 degrees by 12-2pm. In other words no need to wake up too early!


1. The water flows are coming up a little and water temps are warming up a bit. Fish deep and slow if you do not see rising fish or prospect with smaller dries.
2. Chironomids and small dark nymphs have been fishing well.
3. March Browns are starting to make an appearance. Cloudy days with temps in the high 30’s to low 40’s are best for this hatch.

BEST TECHNIQUES – Nymphing deep and slow. Dries if you see rising fish.

Good luck and don’t forget to stop in our Philipsburg shop Flint Creek Outdoors and our NEW JACKALOPE JOE’S espresso bar! We’re open 7:30-5 seven days a week. Be sure to stop in to talk to Josh, grab a coffee, some Orvis gear, and flies from the the best fly selection in the region.

USGS Water Charts


Good for this time of year. Water is starting to come up and temperatures are increasing.

The Hatch

Skwalas, march browns, nemouras, midges

Fly Patterns

NYMPHS - Pat's Rubber Legs, brown, #6-#10; Pheasant Tail Nymph, #14-18; Pink or hot bead red San Juan Worm #8-10; Montana Prince tan #12-16, double bead stone peacock or natural #8 DRIES - Griffiths gnat #18-20, purple haze #18-20 STREAMERS - Sparkle Minnow #6 in Olive; Zonkers #6, 8 in Natural, Olive, or Yellow; Kreelex Fly #6 in Copper/Gold, Gold/Silver, or Purple/Silver.


Water Flow

577 cfs

Link to Water Flow Graph



Water temperature at mid-day

33-40 deg.

Water Condition


Best time of day to fish


Best stretch

The entire creek is fishing well.

Best access point

Upper: Gilles Bridge Lower: Valley of the Moon

Fish species

Cutthroat, rainbow, cutt-bow, brown, bull, some brook trout, and whitefish.

Fishing season

Open year round, but catch and release for trout during winter.

Nearest airport

Missoula International Airport

Recommended fly fishing leader

9' 3x

Recommended fly fishing tippet

3x and 4x top to bottom bug respectively unless you are swinging streamers then bump up to 2x

Best fly fishing rod

Crisp 9' 5wt for nymphing but super fun spot to swing streamers with switch rods.