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.
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.
Open year-round
Year-round below Flaming Gorge Dam. Blue-ribbon fishery. Special regs in some sections
Forecast and on-page guide updated June 24, 2026 (UTC). Open the app for hourly conditions.
Today's Fishing Conditions
Fair
Updated 4:20 AM
58°F
2770 CFS
2 PM - 4 PM
Stonefly Adult
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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
Rainbow Trout, Brown Trout, and Lake Trout
freestone
54°F - 64°F
June Hatches
Salmonfly
Stonefly
Giant stonefly hatch, moves upstream as water warms above 52F
Golden Stone
Stonefly
Follows salmonfly hatch, active during midday
PMD
Mayfly
Pale Morning Duns, morning hatches on sunny days
Green Drake
Mayfly
Large mayfly, best on cloudy humid days
Caddis
Caddis
Evening caddis hatches prolific through summer
June Fishing Tactics
Primary Targets
Recommended Tactics
Prime dry fly season. Evening hatches can be spectacular.
Year-Round Fishing Guide
| Month | Water Temp | Tactics |
|---|---|---|
| January | 32-38°F | Nymphing, Midges, Small Streamers |
| February | 32-40°F | Nymphing, Midges, Small Streamers |
| March | 36-46°F | Dry Flies, BWOs, Skwala |
| April | 42-52°F | Dry Flies, BWOs, Skwala |
| May | 48-58°F | Dry Flies, BWOs, Skwala |
| June(Now) | 54-64°F | Hoppers, Terrestrials, PMDs |
| July | 58-68°F | Hoppers, Terrestrials, PMDs |
| August | 60-70°F | Hoppers, Terrestrials, PMDs |
| September | 54-64°F | Streamers, BWOs, October Caddis |
| October | 46-56°F | Streamers, BWOs, October Caddis |
| November | 38-46°F | Streamers, BWOs, October Caddis |
| December | 32-40°F | Nymphing, 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
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.
Little Hole
Famous access to quality water.
Red Creek
Mid-section access.
Browns Park
Lower river access.
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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