Freestone · Limestone · British Columbia

Upper Kootenay River

Upper Kootenay River terrain map

The upper Kootenay in the Rocky Mountain Trench is broad, clear cutthroat water — long riffles, gravel bars and good runs holding native westslope cutthroat and bull trout with some rainbows.

Good · Bull Trout
Goodlive now
A proper day on the water
River steady at a fishable height. A proper day for it. Work the seams with an upstream nymph, switch to the dry when they show.
75% confidence
What moved it
  • Level1.20 mLast reading 15h ago
  • Water temp7.0°C
  • ClarityClear
Conditions on the water
Live gauge
Level
Steady
1.20 m
Last reading 15h ago
Water temp7.0°C
ClarityClear
Weather5°C
WindE 4 km/h
Pressure1018 hPa
Rain · recent4.4 mm
Rain · ahead2.5 mm

The nearest gauge doesn't record temperatures, so we've estimated it — defer to the river keeper's advice.

Water temperature for Bull Trout
Ideal
7°C est.ideal 6–12°C
0°14°28°
How to fish it · for Bull 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.

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Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 2 guilds 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 · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
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.

Permits & access
Permit required — see local rules.
  • Native C&R, bull trout protected
  • Verify current BC regs (Region 4).
What's coming
Plan ahead
5-day outlook
Other water nearby · 3
Bull River
34 km
Cutthroat trout · Bull trout
St. Mary River
37 km
Cutthroat trout · Bull trout · Rainbow trout
Elk River
52 km
Cutthroat trout · Bull trout
About this water

The upper Kootenay in the Rocky Mountain Trench is broad, clear cutthroat water — long riffles, gravel bars and good runs holding native westslope cutthroat and bull trout with some rainbows. Big enough to float and full of willing fish, it fishes as fine dry-fly and streamer water through summer and autumn once it drops into shape.

Under the surface

The upper Kootenay between Canal Flats and Wardner is a broad, clear mountain freestone of long riffles, gravel bars and good runs holding native westslope cutthroat and bull trout with some rainbows. Big, floatable water in the Rocky Mountain Trench, it offers fine dry-fly and streamer fishing in classic Kootenay scenery.

Wading: Strong current, big river volume, flashy in runoff

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

Native westslope cutthroat (Threatened, C&R) and bull trout (char, protected, C&R), with some rainbows. Whirling disease/didymo concerns — Clean-Drain-Dry.

The full read · show the working · for Bull Trout · confidence 75%
How the 77 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time20 × 13%2.6
Pressure75 × 7%5.3
Insect activity50 × 12%6.0
Conditions total= 77
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 15 June → 31 October
Related guides
Euro Nymphingsubsurface methods
Booking & contacts