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Wyoming fly fishing

North Popo Agie River

A Wind River Mountains river with four kinds of trout, from alpine water down to the lower river.

  • 53 miRiver length
  • Jun–SepBest season
  • 4Game fish
  • 3Access points
See how it's fishing Today's top 10 rivers near you, free.
In the FlyFishFinder app North Popo Agie 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 North Popo Agie

The North Popo Agie flows out of the Wind River Mountains. It holds brook, brown, rainbow and Yellowstone cutthroat trout.

The fishing runs from high alpine water down to lower sections with more varied structure. The best water often takes a hike.

Stonefly and mayfly hatches give good dry fly fishing. Wyoming Game and Fish rates parts of it as Yellow Ribbon water.

Fish you'll catch

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

Brown Trout
Rainbow Trout
Brook Trout
Yellowstone Cutthroat Trout

Hatching in November

What's on the water in the Big Horn 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 North Popo Agie

  • Be ready to hike

    The prime sections often take a walk. Check the access points in the app first.

  • Fish sizes 10 to 16

    Stoneflies, mayflies, terrestrials and small streamers in that range cover most days.

  • Go in midsummer

    July and August are the peak.

  • Expect a mix

    Four kinds of trout live here. What you catch depends on how high you fish.

Every access point on the North Popo Agie, in your pocket.

  • 3 mapped access points, with parking and put-ins
  • Today's Fishability score, so you fish the day that lines up
  • Bite forecast for the days ahead
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North Popo Agie River FAQ

When is the best time to fly fish the North Popo Agie?

June through September, with July and August the peak.

What fish live in the North Popo Agie?

Brook trout, brown trout, rainbow trout and Yellowstone cutthroat.

What flies work on the North Popo Agie?

Stoneflies, mayflies, terrestrials and small streamers in sizes 10 to 16.

Is there a stream gage on the North Popo Agie?

Not on the river itself. This page shows the closest reporting USGS gage, and the app has every gage nearby.

Is there public access on the North Popo Agie?

Yes. There are 3 mapped access points, all in the free FlyFishFinder app.

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