Rock Creek
creek in Idaho
This diverse creek system near Twin Falls presents a variety of fly fishing opportunities, from its meandering spring creek sections to more rugged canyon stretches. It's a reliable local fishery known for holding healthy populations of both brown and rainbow trout.
Conditions right now
No USGS gauge is linked to this water yet, so we can't chart flows.
What's working on Rock Creek
- 01Rock Creek is in excellent late-season wading shape with cold, clear water.
- 02Anticipate active Blue-Winged Olive (BWO) hatches, especially on overcast days.
- 03The October Caddis hatch is expected, offering opportunities for larger dry flies.
- 04Midges and stonefly nymphs remain crucial subsurface food sources.
- 05Fall spawning makes egg patterns highly relevant for opportunistic feeders.
- 06Focus on pocket water, fast boulder seams, deep riffle transitions, and sunny spots.
- 07Fishing from boats is prohibited until December 1st.
What to tie on
Picked from reports, hatches and the season. Tap a fly for the recipe and where else it works.
Blue-Winged Olive Comparadun
Blue-Winged Olives are actively hatching in early fall, especially on overcast days, making this low-profile dry fly excellent for selective trout feeding on emergers and adults.
October Caddis (Dry)
Fall marks the largest caddis hatch of the year in many western rivers, making this a prime pattern for enticing aggressive strikes from opportunistic fish.
Buy at AmazonTungsten Bead Pat's Rubber Legs
This heavy stonefly nymph is crucial for getting deep in the current, imitating larger dislodged insects, and provides a substantial meal for actively feeding trout year-round, especially in fall.
Buy at AmazonFlashback Hare's Ear Nymph
An excellent general searching nymph, mimicking various aquatic insects active in the currents year-round, and particularly effective as BWOs begin to emerge in the fall.
Zebra Midge
Midges are a primary and consistent food source year-round, especially in cold water, making this weighted pattern essential for getting into the strike zone.
Buy at AmazonEgg Sucking Leech
Effective year-round, but particularly productive in the fall when trout are keying into eggs and leeches as a significant food source.
Buy at AmazonPMD (Pale Morning Duns)
Pale Morning Duns are actively hatching in fall, providing a key food source for opportunistic feeders, especially on warmer, overcast days.
Woolly Bugger (Olive)
A reliable year-round streamer, this pattern is highly effective for imitating leeches and baitfish, which become crucial food sources for aggressive trout in colder fall waters.
Blood Dot Egg
Fall is prime egg season for trout below spawning areas, making this an essential pattern for opportunistic feeders.
Buy at AmazonWhere to fish and who to ask
Get Rock Creek reports by email
Save this water and we'll email you a weekly summary of conditions, hatches and what's working.
Idaho season by season
What changes on the water through the year, with the flies for each season.
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Quick answers
Common questions about Rock Creek.
What flies work best on Rock Creek?
Our top scored fly patterns for Rock Creek right now are Blue-Winged Olive Comparadun (80% confidence), October Caddis (Dry) (80% confidence), Tungsten Bead Pat's Rubber Legs (80% confidence). These picks are scored from recent fishing reports, hatch data, and seasonal patterns.
What fish species are in Rock Creek?
Rock Creek holds Cutthroat, Cutt-bow, Whitefish. See the species links on this page for fly recommendations and seasonal behavior for each.
Is Rock Creek fishing well right now?
We publish a fresh bite report for Rock Creek each week based on recent on-the-water intel. The current report — with conditions, hatches, and what's producing — is on this page.