Rock Creek

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Rock Creek

Updated 09/10/2021 at 5:07pm

Conditions At-a-glance


Weather Forecast

Our Report

Rock Creek spring fly fishing


1. Try a terrestrial with a thin-bodied nymph as a dropper
2. If the terrestrial bite isn’t good think tricos, bwo’s, and midges.
3. The early morning or evening streamer bite can be good


We have excellent conditions for the terrestrial bite for the next week.

BEST TECHNIQUES – Prospecting with dry flies and nymphing.

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


The entire creek is fishing well but the water is getting warm. Invest in a stream thermometer and check temps. It takes literally 10 seconds. If the water is above 65 deg please take care while releasing fish and even better, try fishing earlier or later as water temperatures are safer for the fish.

The Hatch

Hoppers, ants, beetles, craneflies, , caddis, midges, tricos, hecubas

Fly Patterns

NYMPHS - Pat's Rubber Legs in black, brown, #6-#10; Pheasant Tail Nymph, #12-18; Pink San Juan Worm #8-10; Hot Bead San Juan Worm Red; Montana Prince tan #12-16, double bead stone black #4, yellow sally nymph #14-16, yellow frenchie #14-16; lightning bug #14-18 DRIES - Purple haze #14-20, yellow sally #14-16, pmd #14-16, hopper #12, ant #16, spruce moth #14 STREAMERS - Sparkle Minnow #6 in Olive; Zonkers #6, 8 in Natural, Olive, or Yellow; Kreelex Minnow #6 in Copper/Gold, Gold/Silver, or Purple/Silver.


Water Flow

216 cfs

Link to Water Flow Graph



Water temperature at mid-day

60 deg.

Water Condition

Low and clear

Best time of day to fish

Late morning through evening

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.