Freestone · Granite · Nunavut / NWT

Coppermine River

Small waterfall cascading over dark cliffs into the Coppermine River, boreal spruce forest along the rim, Nunavut/Northwest Territories Arctic barrens

The Coppermine is a great Arctic wilderness river running north to Coronation Gulf — Arctic grayling and lake trout through its tundra reaches and sea-run char near the coast.

Good · Lake Trout
Large Baitfish Streamer · 1/0-4
Goodlive now
A proper day on the water
Low and clear — careful approach country. Stay small, stay accurate.
75% confidence
What moved it
  • LevelDry recentlyNo gauge reading
  • Water temp11.5°C
  • ClarityClear
Today's fly
LB
Large Baitfish Streamer1/0-4
Proven pattern for this period
Conditions on the water
Estimate
Level
Dry recently
No gauge reading
Water temp11.5°C
ClarityClear
Weather9°C
WindN 12 km/h
Pressure1017 hPa
Rain · recent0.4 mm
Rain · ahead3.5 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

Water temperature for Lake Trout
Ideal
12°C est.ideal 6–12°C
0°14°28°
How to fish it · for Lake 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
Good — water temperature is working for you, but time of day is the limiting factor today.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 3 active hatches hour by hour with Pro.

Start free trial

14-day free trial. Cancel anytime.

Sub-surface · on the nymphunder the surface

Hatch predictions

See the full sub-surface read with Pro.

Start free trial

14-day free trial. Cancel anytime.

Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 2 with Pro.

Start free trial

14-day free trial. Cancel anytime.

Evidence
ModelledModerate confidence

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

Through the year
0–3 scale · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
1
SalmonflyHatch
2
3
2
Golden StoneHatch
2
3
2
SkwalaHatch
2
3
2
Yellow SallyHatch
1
2
1

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

Ranked for today
Lake Trout fly box
LB
Large Baitfish StreamerTop
1/0-4 · Pattern
Proven pattern for this period
Permits & access
Permit required — see local rules.
  • C&R / strict limits; co-management rules
  • Verify current NWT/Nunavut regulations.
What's coming
Plan ahead
5-day outlook
Gallery · 2
  1. Small waterfall cascading over dark cliffs into the Coppermine River, boreal spruce forest along the rim, Nunavut/Northwest Territories Arctic barrens
    A waterfall along the Coppermine River
  2. Terrain map of the venue
    Terrain map
About this water

The Coppermine is a great Arctic wilderness river running north to Coronation Gulf — Arctic grayling and lake trout through its tundra reaches and sea-run char near the coast. It's classic expedition water of riffle, pool and rapid, fished on remote canoe trips and fly-in excursions, with superb grayling fishing and the chance of char near the salt. Barrenland fly fishing at its wildest.

Under the surface

The Coppermine is a major Arctic river flowing north to Coronation Gulf, holding Arctic grayling, lake trout and sea-run Arctic char in vast tundra-and-barrenland country. A classic northern wilderness river — long stretches of riffle, pool and rapid — it offers superb grayling fishing and char near the coast, fished on remote canoe expeditions and fly-in trips.

Wading: Remote wilderness, cold swift water, rapids, sudden weather

  • Granite
  • Partly confined
  • Pool riffle
  • Large river
Conservation note

Arctic grayling, lake trout and sea-run Arctic char (catch-and-release / strict limits). Remote wilderness and Indigenous co-managed waters. Clean-Drain-Dry.

The full read · show the working · for Lake Trout · confidence 75%
How the 79 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow90 × 22%19.8
Clarity85 × 18%15.3
Feeding Time40 × 13%5.2
Pressure75 × 7%5.3
Insect activity48 × 12%5.8
Conditions total= 79
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 1 July → 15 September
Related guides
Euro Nymphingsubsurface methods
Booking & contacts