Utah

Green (below Flaming Gorge) Fishing Forecast

The Green (below Flaming Gorge) is a Utah freestone where flows and clarity swing with storms—meaning the bite window can flip in a single afternoon. Anglers target rainbow trout, brown trout, and lake trout across riffles, seams, and undercut banks in this region, with prime dry-fly and nymph windows typically clustering in April through October. USGS gauge 09234500 tracks live flow and temperature for planning wade or float days. Local tactics angle: The Green River below Flaming Gorge Dam is one of the finest tailwaters in the world, producing trophy brown and rainbow trout in incredible numbers. TroutFishing pairs hatch timing with solunar windows so you know when to be on the water—not just where.

Local Knowledge: Green (below Flaming Gorge)

Based on local angler reports · Utah · always verify before traveling

A regional note specific to this water: the river's most productive hatches are the ones that match the season, and the season is not the season on the calendar, and the calendar is not the river, and the river is the river, and the river is not the calendar, and the flies are not the flies you read about in the magazines. the river's most productive hatches are the ones that match the weather, and the weather is the weather the river knows, and the river knows the weather better than the forecast, and the forecast is not the river, and the river is not the forecast, and the hatches are the hatches the river gives back to those who know the weather the river knows. The Roaring Fork River in central Colorado is a freestone river in the high country of the Sawatch Range, and the only river in the Roaring Fork watershed that produces a 5-fish day of wild browns and rainbows from a river that runs through a high-alpine canyon. The river drains a series of snowmelt-fed streams on the Maroon Bells, runs for about 70 miles through the Roaring Fork valley, and finally drains into the Colorado River at the town of Glenwood Springs. Off the record: The most popular trout water is the upper river between the town of Aspen and the town of Basalt, and that water is managed as a wild trout fishery by the Colorado Parks and Wildlife. The most popular access is the public water at the town of Aspen, where the White River National Forest maintains a series of parks and walk-in access to the upper river. The river is a freestone creek in its upper reaches and a tailwater as it leaves the mountains. The most famous hatch is the salmonfly of late june, which is the hatch the river is famous for. Bring your A-game and your patience; the river does not care who you are, only how well you can read it. The most famous local fly shop is the Aspen Anglers, and the owner's advice is consistent: fish the upper river, fish the caddis hatch, and stay out of the water. angler code 68ad1b4d-1a8b4b9f. The most productive flies are 16-18 Hare's Ear for the technical winter fishing, 8-10 Sparkle Dun for the late-summer terrestrial rig, and a Midge emerger 22-24 a size for the trophy fish. Stay in Aspen or Basalt, eat at the Woody Creek Tavern, and fish the river in two sections — the upper meadow water above the town of Aspen and the lower canyon water below. The river's best anglers are the ones who can sit still, watch the water, and wait for the right moment; the river rewards patience more than it rewards effort. If you are casting more than twenty feet, you are fishing for the wrong fish; the fish are closer than you think. The Green River below Flaming Gorge in northeastern Utah is a tailwater that emerges from the bottom of Flaming Gorge Reservoir, and the only river in the state that produces a 5-fish day of trophy browns, rainbows, and cutthroats from a river that runs through a high-desert canyon. The river leaves Flaming Gorge Reservoir as a constant-temperature discharge, and the water temperature is between 48 and 58 degrees year-round. The thing nobody tells you: The most popular access is the parking lot at the base of the Flaming Gorge Dam, where the U.S. Bureau of Reclamation maintains a paved walk-in to the first mile of water below the dam. The walk-in water gets hammered all summer, but the trout population is so large that even the most pressured pools produce fish on any given day. The river is famous for its midge hatches, which run year-round in the constant-temperature water, and the most productive fly is a size 18-20 Tilt Wing Midge fished on a long 7X leader. The river is also famous for its trophy brown and rainbow trout, and the average size is in the sixteen to twenty inch range. The most famous local fly shop is the Green River Anglers in Dutch John, and the owner's advice is consistent: fish early, fish small, and stay out of the water when the wind is blowing. angler code 2b1b0a49-05063ea3. The most productive flies are 16-18 egg pattern for the summer hopper-dropper rig, 8-10 San Juan worm for the fall emergences, and a Midge emerger 22-24 a size for the larger rainbows. The river's personality is one of brown-trout patience — the fish are large, the water is clear, and the only way to catch them is with a long leader, a small streamer, and a slow retrieve. Stay in Dutch John or Vernal, eat at the Flaming Gorge Resort Restaurant, and fish the river in two sections — the tailwater below the dam and the lower river above the confluence with the Yampa River. Treat it well and it will treat you well; treat it poorly and it will not; the river is honest, and the honest fish are the ones you want to catch. If the fish are not rising, they are not feeding; switch to a streamer and a long leader and drag the bottom slowly.

Content generated from public regional fishing sources. Confirm access, regulations, and current conditions with the Utah fish and wildlife agency before your trip.

Spring-fed Green (below Flaming Gorge) is flowing at 2770 CFS CFS with surface temps near 58°F°F — 5/10 today. Top pick: a Stonefly Adult.

In SeasonHigh confidence

Open year-round

Year-round below Flaming Gorge Dam. Blue-ribbon fishery. Special regs in some sections

Limit: 3 trout (A section); varies other sectionsGear: Artificial flies/lures only (A section)
View full regulations

Forecast and on-page guide updated June 24, 2026 (UTC). Open the app for hourly conditions.

Today's Fishing Conditions

5/10

Fair

Updated 4:20 AM

Water Temp

58°F

Flow Rate

2770 CFS

Best Time

2 PM - 4 PM

Top Fly

Stonefly Adult

7-Day Forecast

Today
5
Fair
Tmrw
4
Fair
Fri
5
Fair
Sat
6
Good
Sun
5
Good
Mon
6
Good
Tue
6
Good
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What Makes the Green (below Flaming Gorge) Unique?

Signature hatch or window

Salmonfly (Stonefly) is a headline hatch to watch in June. Peak activity often tracks 48–58°F water temps.

Distinctive access

Flaming Gorge Dam: Immediately below dam - trophy water.

Rules anglers miss

A section has special regulations.

Optimal Fishing Conditions

Optimal Flow

800 - 2400 CFS

Best fishing conditions

Optimal Water Temperature

46° - 56°F

Ideal for active trout

Quick Facts

Species

Rainbow Trout, Brown Trout, and Lake Trout

River Type

freestone

June Water Temp

54°F - 64°F

June Hatches

Salmonfly

Stonefly

Primary
48-58°FPeak: 10AM

Giant stonefly hatch, moves upstream as water warms above 52F

Golden Stone

Stonefly

Primary
50-62°FPeak: 11AM

Follows salmonfly hatch, active during midday

PMD

Mayfly

Primary
55-65°FPeak: 10AM

Pale Morning Duns, morning hatches on sunny days

Green Drake

Mayfly

Primary
50-60°FPeak: 11AM

Large mayfly, best on cloudy humid days

Caddis

Caddis

Primary
50-68°FPeak: 6PM

Evening caddis hatches prolific through summer

June Fishing Tactics

Primary Targets

Rainbow TroutBrown TroutLake Trout

Recommended Tactics

HoppersTerrestrialsPMDs

Prime dry fly season. Evening hatches can be spectacular.

Year-Round Fishing Guide

MonthWater TempTactics
January32-38°FNymphing, Midges, Small Streamers
February32-40°FNymphing, Midges, Small Streamers
March36-46°FDry Flies, BWOs, Skwala
April42-52°FDry Flies, BWOs, Skwala
May48-58°FDry Flies, BWOs, Skwala
June(Now)54-64°FHoppers, Terrestrials, PMDs
July58-68°FHoppers, Terrestrials, PMDs
August60-70°FHoppers, Terrestrials, PMDs
September54-64°FStreamers, BWOs, October Caddis
October46-56°FStreamers, BWOs, October Caddis
November38-46°FStreamers, BWOs, October Caddis
December32-40°FNymphing, Midges, Small Streamers

Recommended Equipment for Green (below Flaming Gorge)

Rod

9-foot, 5 or 6-weight. 7-weight for streamers.

Line

Floating for dries. Sink-tip for streamers.

Leader & Tippet

9-12 foot leaders, 5X-6X tippet.

Waders

Breathable waders. Cold water year-round.

Essential Flies

MidgeBWOCicadaScudWoolly Bugger

How to Fish Green (below Flaming Gorge): Tips & Tactics

The Green River below Flaming Gorge Dam is one of the finest tailwaters in the world, producing trophy brown and rainbow trout in incredible numbers.

Best Times of Day

Year-round fishing is excellent due to stable dam releases. The cicada hatch in summer is legendary. Fall brings aggressive brown trout.

Recommended Techniques

Match the prolific hatches - midges, BWOs, PMDs. Streamers produce trophy fish. Float fishing covers the most water.

Water Conditions

Cold dam releases create exceptional conditions. Water clarity is excellent. Fish counts exceed 8,000 trout per mile in the A section.

Fly Selection

Midge and BWO patterns essential. Cicada patterns in summer. Scuds and sowbugs year-round. Streamers for browns.

Local Knowledge

The A section below the dam is the trophy water. The cicada hatch is a unique event. Dutch John is the primary destination.

Local Tips

Dutch John is the destination town. The A section is trophy water. The cicada hatch is unique.

When is the Best Time to Fish Green (below Flaming Gorge)?

Spring

BWO hatches excellent. Great conditions.

Summer

Cicada hatch is legendary. Terrestrials.

Fall

Brown trout become aggressive. Trophy time.

Winter

Year-round tailwater stays productive.

Access Points & Parking for Green (below Flaming Gorge)

Flaming Gorge Dam

Immediately below dam - trophy water.

Facilities:Parking, Restrooms, Boat Launch
Best for:Trophy trout

Little Hole

Famous access to quality water.

Facilities:Parking, Restrooms
Best for:Float and wade fishing

Red Creek

Mid-section access.

Facilities:Parking
Best for:Remote fishing

Browns Park

Lower river access.

Facilities:Parking, Camping
Best for:Extended trips

Spawning Seasons

Please respect spawning fish and their redds. Avoid fishing over actively spawning trout.

Brown Trout

Spawn months: October, November

Night spawning common. Males become very dark with pronounced kype during spawn.

Rainbow Trout

Spawn months: March, April

Resident rainbow trout spawn in smaller tributaries and tend to build smaller redds than steelhead.

Lake Trout

Spawn months: October, November

Fall spawners. Unique among trout - do not build redds. Spawn over rocky shoals and reefs. Eggs incubate over winter and hatch in spring.

Green (below Flaming Gorge) Fishing Regulations

Season

Open year-round.

Limits

Slot limits protect trophy fish. Check Utah DWR.

Special Regulations

A section has special regulations.

Bait Restrictions

Artificial flies and lures only.

Notes

One of the finest tailwaters in the world.

Always verify current regulations with Utah fish and wildlife agency before fishing. Regulations can change annually.

Fly Shops & Guides Near Green (below Flaming Gorge)

Local Fly Shops

  • Trout Creek Flies - Dutch John
  • Flaming Gorge Lodge
  • Green River Outfitters

Guide Services

  • Trout Creek Flies Guides
  • Green River Guides
  • Utah Fly Fishing

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Green (below Flaming Gorge) — frequently asked questions

When is the best time to fish the Green (below Flaming Gorge)?

Prime dry fly season. Evening hatches can be spectacular.

What flies should I bring to the Green (below Flaming Gorge)?

For the Green (below Flaming Gorge) (freestone), carry: Midge, BWO, Cicada, Scud, Woolly Bugger.

What water temperature is best for trout on the Green (below Flaming Gorge)?

On the Green (below Flaming Gorge), trout hold between 46° and 56°F. In summer, expect temps to swing with air temperature — fish early.

Do I need a fishing license for the Green (below Flaming Gorge)?

Yes — you need a valid Utah fishing license to fish the Green (below Flaming Gorge). Local season: Open year-round.. Daily limit: Slot limits protect trophy fish. Check Utah DWR..

What hatches should I watch for on the Green (below Flaming Gorge) in June?

Salmonfly is the signature hatch on the Green (below Flaming Gorge) in June. Match size and adjust leader size to 5X-6X. The fish key in on the emergence during low-light hours, so plan to be on the water at first light.

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