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Colorado fly fishing

Cache la Poudre River

Fly fishing the Cache la Poudre River near Fort Collins means canyon pocket water, wild browns and rainbows, and easy roadside wade access.

  • 168 miRiver length
  • Jul–SepBest season
  • 6Game fish
  • 159Access points
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In the FlyFishFinder app Cache la Poudre River Every access point, mapped Today's top 10 rivers near you Live flows from nearby gages Today's rating Premium Open in the app

About the Cache la Poudre

The Cache la Poudre River is a freestone river that drops out of the mountains west of Fort Collins, Colorado. It is Colorado's only designated Wild and Scenic River. Highway 14 follows it through a steep granite canyon, with pull-offs, campgrounds and picnic areas all the way up. The full river runs about 168 miles.

Brown trout, rainbow trout and cutthroat trout live here, along with mountain whitefish. Lower down you will also find smallmouth bass and common carp. The water is continuous pocket water, boulder runs and deep pools, so it rewards short, accurate casts and good wading.

The Poudre is best known for summer fishing once runoff drops. Runoff in May and June keeps the river high and risky. After that, the canyon fishes well through September. Salmonflies, golden stones, pale morning duns, caddis and hoppers are the big names. Midges and blue-winged olives carry the cooler months.

Some stretches have special rules, including fly and lure only water and release requirements. Mishawaka, Picnic Rock and Gateway Natural Area are well known access areas. Always check the current Colorado Parks and Wildlife regulations for the exact section.

See the month-by-month Cache la Poudre River hatch chart →

Fish you'll catch

Tap a fish to see every Colorado river that holds it.

Brown Trout
Rainbow Trout
Cutthroat Trout
Mountain Whitefish
Smallmouth Bass
Common Carp

Hatching in November

What's on the water in the South Platte watershed this month, and the fly to match.

Midge
Midge
#22-28, WD-40
34–65°F
Blue-Winged Olive
Mayfly
#18-22, Comparadun
44–58°F
All 11 hatches this year
Midge
Midge
#22-28, WD-40
34–65°F
Blue-Winged Olive
Mayfly
#18-22, Comparadun
44–58°F
Skwala Stonefly
Stonefly
#8-10, Chubby Chernobyl
44–54°F
Mother's Day Caddis
Caddis
#14-16, Elk Hair Caddis
48–58°F
Pale Morning Dun
Mayfly
#16-18, Sparkle Dun
55–68°F
Salmonfly
Stonefly
#4-6, Chernobyl Salmonfly
50–60°F
Golden Stonefly
Stonefly
#6-8, Stimulator
55–65°F
Green Drake
Mayfly
#10-12, Paradrake
55–65°F
Hopper Season
Terrestrial
#8-12, Dave's Hopper
65–78°F
Trico
Mayfly
#22-26, Trico Spinner
60–72°F
Mahogany Dun
Mayfly
#16, Comparadun
52–62°F

Light bars show the season and dark bars the peak. The ringed month is this month.

Tips for fishing the Cache la Poudre

  • Skip runoff

    The Poudre runs high and cold through May and early June. Wait for the water to drop and clear before you plan a trip.

  • Fish pocket water slowly

    Work the soft water behind boulders and along seams. Short casts and good drifts beat long ones.

  • Use the roadside pull-offs

    Highway 14 has lots of pull-offs. Walk a few hundred yards from the car to get away from the crowd.

  • Check the section rules

    Special rules change from stretch to stretch. Read the Colorado Parks and Wildlife map for the water you plan to fish.

  • Plan with the app map

    The FlyFishFinder app maps public access points along the Poudre and the live gage, so you can see how high the water is before you drive up.

Every access point on the Cache la Poudre, in your pocket.

  • 159 mapped access points, with parking and put-ins
  • Today's Fishability score, so you fish the day that lines up
  • 7-day flow and water-temp trends for every gauge on the river
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Cache la Poudre River FAQ

When is the best time to fish the Cache la Poudre River?

July through September is the main window once runoff has dropped. Spring runoff makes the canyon dangerous, so check flows before you go.

Where can I fish the Cache la Poudre near Fort Collins?

The lower canyon and Gateway Natural Area are the closest. Mishawaka and Picnic Rock are well known wade areas, and Highway 14 has pull-offs farther up the canyon.

Can you wade the Cache la Poudre?

Yes, once flows drop. Expect boulders, fast current and slick rock, so wear studded boots and use a staff.

What flies work on the Cache la Poudre?

Elk Hair Caddis, Pheasant Tail nymphs and Woolly Buggers cover a lot of water. Salmonflies, golden stones and hoppers matter in summer. The FlyFishFinder app shows what is hatching and working today.

What fish are in the Cache la Poudre River?

Brown trout, rainbow trout, cutthroat trout and mountain whitefish are here, with smallmouth bass and common carp in lower water.

Are there special regulations on the Cache la Poudre?

Yes, some stretches are fly and lure only with release rules. Check the current Colorado Parks and Wildlife regulations for the exact section.

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