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Wyoming fly fishing

Flat Creek

A technical Snake River tributary where cutthroat over 20 inches are common, with 36 mapped access points.

  • 55 miRiver length
  • 1Game fish
  • 36Access points
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In the FlyFishFinder app Flat Creek 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 Flat Creek

Flat Creek is a Snake River tributary that holds big cutthroat for its size. Fish over 20 inches are common.

It can be technical, but it pays off. The lower sections have the largest fish, many of them up from the Snake.

Wyoming Game and Fish lists it as a Yellow Ribbon stream. Locals fish PMD and BWO patterns, which fits a slow, technical creek.

Fish you'll catch

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

Snake River Cutthroat Trout

Hatching in November

What's on the water in the Snake Headwaters 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 Flat Creek

  • Go small and quiet

    Flat Creek is technical. Long leaders, light tippet and careful approaches matter more than fly choice.

  • Fish the lower river for size

    The biggest cutthroat are in the lower sections, where fish move up from the Snake.

  • Carry PMDs and BWOs

    Those are the local picks. On the regional calendar, PMDs run May through August and BWOs bookend the season.

  • Read the regulations

    Special regulations may apply on Flat Creek. Check the current Wyoming rules before you go.

Every access point on Flat Creek, in your pocket.

  • 36 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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Flat Creek FAQ

Are there big fish in Flat Creek?

Yes. Cutthroat over 20 inches are common, especially in the lower sections.

Is there public access on Flat Creek?

Yes. There are 36 mapped access points, all in the free FlyFishFinder app.

Is Flat Creek hard to fish?

It can be technical. Plan on careful wading and small flies.

What flies work on Flat Creek?

PMD and BWO patterns are the local favorites.

Is Flat Creek fishing well today?

This page shows the live gage. For a rating of how it is fishing today, open the creek in the FlyFishFinder app.

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