Stillwater · Granite · Northwest Territories, CA

Great Slave Lake

GreatSlaveLakeAtDettahDSC00857-1
Good · Pike
Large baitfish/streamer · 8–10
Goodlive now
Autumn pike — big fish, big flies
Useful ripple, fishable wave. Fishable ripple — drift the productive shore.
74% confidence

Great Slave Lake is often best in spring through autumn.

What moved it
  • WindNW 24 km/hModerate breeze
Today's fly
LB
Large baitfish/streamer8–10
Strip it for fish chasing fry or in coloured water.
Conditions on the water
Estimate
Wind
Moderate breeze
NW 24 km/h
N
NW
from the north-west
Wave40 cm chop
Water temp7.2°C
Air temp6°C
CloudOvercast
Pressure1018 hPa
Rain · recent0.0 mm

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

Head to
Wind driftNW wind
South-eastern end

A northwesterly has held for 7 hours at much the same temperature as the 7°C water. No thermal steer either way, but the drift still stacks food against the south-eastern end — the bank it is blowing into — so start there. This reads the upper water, though — a bottom bait at range feels it far less than a floater or a fish in the margins. Treat it as a tiebreaker between good swims rather than an override — features and angling pressure usually count for more.

How to fish it · for Pike
When
Pike are feeding aggressively as water cools, building reserves for winter. Weed is dying back, concentrating both pike and prey fish into predictable holding areas.
Where
Autumn/winter pike on the fly — big fish season. Pike are putting on condition and take large flies confidently. Fish dropping weed edges, deep channels, and structure. Start with a sinking line and move to faster-sinking as the water cools. Biggest pike of the year come in this window.
The plan
Plan A

Autumn/winter pike on the fly — big fish season. Pike are putting on condition and take large flies confidently. Fish dropping weed edges, deep channels, and structure. Start with a sinking line and move to faster-sinking as the water cools. Biggest pike of the year come in this window.

Plan B

If the main plan is not working, switch to a smaller, more imitative pattern fished slower and deeper. A change of drift angle can also make a difference.

Watch for

Keep an eye on changing conditions — wind shifts and cloud breaks can trigger short feeding spells.

Boat — at anchor

Windy conditions suit anchoring in productive areas rather than open-water drifting.

Sub-surface · on the nymphunder the surface

Hatch predictions

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 2 as a supporter.

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Through the year
0–3 scale · September highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
1
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Flying AntsHatch
1
2
1
Gray DrakeHatch
1
1
CallibaetisHatch
1
2
2
2
1

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

Ranked for today
Fly box · Pike
LB
Large baitfish/streamerTop
8–10 · Streamer
Strip it for fish chasing fry or in coloured water.
AL
Articulated leech
12–16 · Fly
A dependable searching pattern for these waters.
PF
Pike fly (deceiver)
12–16 · Fly
A dependable searching pattern for these waters.
BH
Bead-head nymph (grayling)
14–16 · Nymph
Search the runs and pockets, dead-drift near the bottom.
Permits & access
Permit required — see local rules.
  • Trophy lake trout C&R/limits; protected-area rules in the East Arm
  • Verify current NWT regulations.
What's coming
Plan ahead
5-day outlook
Condition match
45%
Cloud50%
Wind30%
Temp60%

Conditions are away from Great Slave Lake's sweet spot — it usually fishes best in ripple wind with cloud skies.

Gallery · 2
  1. GreatSlaveLakeAtDettahDSC00857-1
  2. Terrain map of the venue
    Terrain map
Why this score
  • Wind conditions (windy) are not ideal for this water.
Directions
Seasons & zones
  • Trout 15 June30 September
Related guides
Booking & contacts