Freestone · Mixed · Alaska

Upper Copper / Gulkana River

Upper Copper / Gulkana River terrain map
Prime · Rainbow Trout
Parachute Adams · 14–18
Primelive now
About as good as it gets
River high but settled. Coloured water — fish bigger and deeper, confident takes down the seams.
75% confidence
What moved it
  • Level2.13 m
  • Water temp12.9°C
  • ClarityClear
Today's fly
Parachute Adams
Parachute Adams14–18
Cast to rising fish and let it drift drag-free.
Conditions on the water
Live gauge
Level
Steady
2.13 m
Water temp12.9°C
ClarityClear
Weather9°C
WindS 18 km/h
Pressure1021 hPa
Rain · recent8.5 mm
Rain · ahead0.0 mm

Live readings only. Trends shown where the gauge supports them.

Water temperature for Rainbow Trout
Ideal
12.9°Cideal 10–18°C
0°14°28°
How to fish it · for Rainbow Trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Excellent — water temperature is right today, though insect activity could be better.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 2 active hatches hour by hour with Pro.

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Sub-surface · on the nymphunder the surface

Hatch predictions

See the full sub-surface read with Pro.

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Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 2 with Pro.

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Evidence
ModelledModerate confidence

Modelled from regional ecology — no survey or occurrence data for this water yet.

Through the year
0–3 scale · July highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
1
Western Green DrakeHatch
2
2
Flav (Small Western Green Drake)Hatch
2
3
2
Mahogany DunHatch
2
2
American March BrownHatch
2
3
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Ranked for today
Rainbow Trout fly box
Permits & access
Permit required — see local rules.
  • KING SALMON: a free Upper Copper River King Salmon Permit is required from 1 May 2026 (carry permit + licence + king stamp; record kings >=20")
  • The permit does NOT mean the fishery is open — EMERGENCY-ORDER SENSITIVE, check EOs
  • ACCESS: Ahtna/Native Corporation and private land along the corridor — permission may be required
  • Verify all rules against ADF&G
  • No salmon legality claim.
What's coming
Plan ahead
5-day outlook
The full read · show the working · for Rainbow Trout · confidence 75%
How the 83 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity85 × 18%15.3
Feeding Time80 × 13%10.4
Pressure75 × 7%5.3
Insect activity50 × 12%6.0
Conditions total= 83
Can you trust it?
Water temperaturelive gauge readinggauge
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout1 June → 30 September
Related guides
Euro Nymphingsubsurface methods
Booking & contacts