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Boulder Creek

Freestone · Boulder Canyon (Orodell down)Class 2Fishing Well
57

● Live flow from USGS · water temp from sample (no temp sensor at this gauge)

0 cfs
Flow
45°F
Water temp
40.019, -105.326
Location · USGS gauge
40–150
Ideal flow · cfs
Conditions · water 42–48°F

flows back after recent rains (FRA current) · clarity great — largely escaped the muddy water · 'fishing remains excellent,' dry-dropper the way to go · fish get very surface-oriented late AM

Strategy

RMA/FRA June: 'Flows are level, making for good fishing. Water clarity is a bit stained, but it hasn't seemed to bother the fish. Fish have spread out into the pockets and zones that aren't as deep — start with a dry-dropper.' All of the creek fishing well, above the falls has easier wading. Orodell ~78 cfs (drought-level, ~29% of median, below typical runoff). Primary hatches: midges, caddis, BWOs. Dry: Hi Viz No See Um BWO, AR's BWO Adult/Emerger, Para Ext Body BWO, Hi Viz Beetle, Superman Caddis, Foam Run Caddis, Micro Chubby. Nymphs: Zebra Midge, Juju Baetis, Arnott's Pocket Drone, Spanish Perdigon, Sweet Meat Caddis, BTS May in BWO, Tung Poudre Pupae, RS-2. Today (Sun Jul 5) ~91°F plains, sunny and hot — fish mornings; scattered storms return Tue–Wed.

Detailed report

FRA (current): 'Flows are back thanks to recent rains, and the fishing remains excellent — Boulder Creek largely escaped the muddy water and clarity is great.' Dry-dropper the way to go; fish can be especially surface-oriented late AM. Primary hatches: midges, caddis, Yellow Sallies, PMDs, BWOs. All of the creek fishing well (above the falls = easier wading). Water temp mid 50s. Weekday pattern: today (Sun Jul 5) ~91°F plains, sunny and hot; scattered storms Tue–Wed, heat rebuilds late week. No road follows the creek — good solitude spot.

Report: Front Range Anglers / Rocky Mtn Anglers · July 5, 2026 (FRA current, re-confirmed) · FRA + RMA staff + Rise Beyond

Fly-shop reports

2 shops report on Boulder Creek
Front Range Anglers Reported Sep 11, 2026

Flows are more level, but still low. Fish will primarily be in the deepest water available and can be spooky, especially on sunny days. ABove the Falls, flows are even less, and it has been very tough here. Lower down has been better, but you'll still need to bring along a thermometer, as water temps can get hot quickly. Primary hatches have been: Midges, Drakes, Caddis, Yellow Sallies, PMD's and BWO's. ...

Dries: Hi Viz No See Um BWO, AR's BWO Adult and Emerger, Stimmie, Hi Viz Beetle, AR's PMD Adult, Compara Dun PMD, Superman Caddis, X Caddis, Headlight Sally, Ms Tickle Cripple in BWO or PMD, All Season Caddis, Micro Chubby, AR's March Brown, Furminsky Drake, Film Critic Drake and a Hi Vis Foam Ant
Nymphs: Zebra Midge, Juju Baetis, Arnott's Pocket Drone, Spanish Perdigon, Simple PTN, Blow Torch, Kryptonite Caddis, BTS May in BWO or PMD, Simple PTN, Tung Poudre Pupae, BH Caddis Pupa, TB Bender PMD, Hot Butt Caddis, Remote Control, Iron Sally, Byron's Jig AB Sally and a Croston's FMJ
Rocky Mountain Anglers
Boulder
Live report

Reports are pulled live from each shop when you open this river. Shop wording varies — tap through for the full, original report.

Fishability Score breakdown

How today's 57 is built. Flow 35% · Water temp 25% · Weather 20% · Hatch 20%.

Flow0/100
Water temp100/100
Weather76/100
Hatch match82/100

Weather & hatch are placeholder factors until wired to live sources.

What to throw — by time of day

Morning
Dawn – 11am

Spanish Perdigon #18, Arnott's Pocket Drone, RS-2 #20, Pheasant Tail #18

MiddayNOW
11am – 5pm

Hi Viz Beetle / Parachute Adams #14–16 with Zebra Midge dropper, BWO emerger #20, caddis larva #16

Evening
5pm – dark

Elk Hair Caddis #16, Adams #18, small foam terrestrial #12–16

Species
Brown · Rainbow
USGS gauge 06727500

Seasonal hatch report

In season now

Fall — BWOs & Streamers

Cooling water wakes the fish up. Blue-Winged Olives return on grey afternoons, and pre-spawn browns chase streamers hard.

Morning
Dawn – 11am
Hatching
Midges · BWO nymphs · Trico (early fall)
Flies
Pheasant Tail #18, RS-2 #20, Trico spinner #24
Rig
Nymph deep; streamer the banks early for aggressive browns.
Afternoon
NOW
11am – 5pm
Hatching
Blue-Winged Olives · October caddis (freestone)
Flies
BWO dun #20-22, Parachute Adams #20, October Caddis #10
Rig
Overcast = dry BWOs; otherwise swing/strip streamers for browns.
Evening
5pm – dark
Hatching
BWO spinners · Streamer window
Flies
Sculpin/Woolly Bugger #6-8, RS-2 #20
Rig
Strip big flies through frog water at last light for the biggest fish.
Source: Hatchwise Seasonal Guide · updated Jul 5, 12:00 PM MT. General seasonal patterns — verify against a current local shop report before you go.

Sources & last updated

SourceFeedsMost recent update
USGS 06727500 Boulder CreekSep 14, 11:50 AM MT · flow live
Hatchwise Seasonal GuideHatch & fly guidanceJul 5, 12:00 PM MT · editorial
Front Range Anglers Shop fly reportSep 11, 2026 · shop report
Rocky Mountain Anglers Shop fly reportLive — see report

Live flow & water temp come straight from the USGS Instantaneous Values service; timestamps are the gauge's own reading times (Mountain Time).