Freestone · Limestone · British Columbia

Bull River

Bull River venue image

The Bull River is a clear, muscular Kootenay cutthroat freestone east of Cranbrook — pools, pockets and canyon water holding native westslope cutthroat and bull trout in dramatic country.

Marginal · Cutthroat Trout
Chubby Chernobyl · 6-10
Marginallive now
Slow going — pick your moments
Low and clear — careful approach country. Cover and shadow are doing the work today.
90% confidence
What moved it
  • LevelDry recentlyNo gauge reading
  • Water temp17.1°C
  • ClarityClear
Today's fly
Chubby Chernobyl
Chubby Chernobyl6-10
High-confidence seasonal pick
Conditions on the water
Estimate
Level
Dry recently
No gauge reading
Water temp17.1°C
ClarityClear
Weather18°C
WindSW 13 km/h
Pressure1015 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

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

Water temperature for Cutthroat Trout
Warm — slow
17°C est.ideal 9–15°C
0°14°28°
How to fish it · for Cutthroat 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
Water at 17.1°C — above the cutthroat trout caution line (16°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots.
Hatch timeline · todayPeak at 10am

Hatch predictions

Today's headline hatch shown — see all 5 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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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
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
Cutthroat Trout fly box
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
Cooler water nearby · 2
Water here around 17°C — probably warm enough to stress Cutthroat Trout . These are likely cooler.
Upper Kootenay River
34 km
~11°C
Cutthroat trout · Bull trout · Rainbow trout
Wigwam River
51 km
~14°C
Cutthroat trout · Bull trout
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

The Bull River is a clear, muscular Kootenay cutthroat freestone east of Cranbrook — pools, pockets and canyon water holding native westslope cutthroat and bull trout in dramatic country. Partly hydro-regulated upstream, it fishes well for summer and autumn cutthroat on the dry once it's in shape. A fine, sensitive native river.

Under the surface

The Bull River east of Cranbrook is a clear, powerful Kootenay freestone of pools, pocket water and canyon reaches holding native westslope cutthroat and bull trout. Partly regulated by an upstream hydro facility, it offers strong summer and autumn cutthroat fishing in dramatic mountain country and, like its neighbours, is a sensitive native fishery.

Wading: Swift cold water, canyon sections, flows affected by upstream regulation

  • Limestone
  • Confined
  • Pool riffle
  • Pocket water
Conservation note

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

The full read · show the working · for Cutthroat Trout · confidence 90%
How the 28 is built — score × weight = contribution
Temperature54 × 28%15.1
Flow60 × 22%13.2
Clarity85 × 18%15.3
Feeding Time70 × 13%9.1
Pressure75 × 7%5.3
Insect activity64 × 12%7.7
Conditions total= 66
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
Cooler water — back toward the 9–15 °C ideal band — would lift the score and ease welfare.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 15 June → 31 October
Related guides
Euro Nymphingsubsurface methods
Booking & contacts