Green River Basin

Green River Basin

Target Species Brown, Rainbow, Cutthroat
Notable Hatches Cicadas, Midges, BWOs
Total Rivers: 17
Primary Hub: Dutch John
Airport: Salt Lake City (SLC) / Rock Springs (RKS)
Best Season: Year-Round

About the Green River Basin

The Green River Basin is home to arguably the finest tailwater trout fishery in the American West. Below Flaming Gorge Dam in Utah, Sections A, B, and C draw fly anglers from around the world — Section A alone holds over 10,000 trout per mile. The basin also includes Warren Bridge and Fontenelle in Wyoming, offering diverse water from red-rock desert canyons to high-alpine meadows.

Key Sections

  • Segment A (Red Canyon): The 7-mile stretch immediately below the dam. Famous for its crystal clear water, towering red canyon walls, and fish densities exceeding 10,000 trout per mile.
  • Segment B: More secluded than A, offering diverse water types and excellent camping.
  • Segment C: flows out into the wild desert environment of Browns Park. Large Brown Trout prowl here.
  • Seedskadee NWR: In Wyoming, below Fontenelle Dam, this refuge offers solitude and massive fish in a high desert setting.

The CICADA Hatch

While the Green has epic BWO and Midge hatches, the Cicada event (typically May/June) is legendary. Massive terrestrial insects crash onto the water, bringing trophy Browns and Rainbows to the surface for explosive eaters. It is one of the most exciting dry fly events in the Rockies.

Fly Fishing Rivers in the Green River Basin

Frequently Asked Questions

What are the best fly fishing rivers in the Green River Basin?

The Green River below Flaming Gorge Dam (Sections A, B, and C) is widely considered the crown jewel of the Green River Basin, renowned globally for its crystal clear water and massive trout populations. Be sure to explore the various sections listed in our guide.

When is the best time to fly fish in the Green River Basin?

While summer (June-September) offers the most consistent dry fly action, the Green River Basin has productive fishing year-round. Fall brings aggressive brown trout and excellent streamer fishing, while spring sees important hatches like Blue Winged Olives. Winter tailwater fisheries can also be excellent.

What fish species can I catch in the Green River Basin?

Anglers can primarily target Brown Trout and Rainbow Trout, with Cutthroat Trout and Brook Trout available in higher elevation streams. Some waters also hold Mountain Whitefish and other species.

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