Freestone · Limestone · British Columbia, CA

Upper Kootenay River

Kootenay River along Hwy 93 between Radium Hot Springs and Vermilion
Prime · Cutthroat Trout
Parachute Adams · 16-20
Primelive now
About as good as it gets
River steady at a fishable height. On the feed top to bottom — start on the rises with a dry, drop a nymph if they stay down.
90% confidence
What moved it
  • Level0.91 mLast reading 42 min ago
  • Water temp9.4°C
  • ClarityClear
Today's fly
Parachute Adams
Parachute Adams16-20
Proven pattern for this period
Conditions on the water
Live gauge
Level
Steady
0.91 m
Last reading 42 min ago
Water temp9.4°C
ClarityClear
Weather11°C
WindN 8 km/h
Pressure1014 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

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

Water temperature for Cutthroat Trout
Ideal
9°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
Excellent — conditions well-balanced, with water temperature particularly in your favour.
Likely species
Mayflies
Caddisflies
Hatch timeline · todayPeak at 11:00

Hatch predictions

Today's headline hatch shown — see all 8 active hatches hour by hour as a supporter.

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Sub-surface · on the nymphunder the surface

Hatch predictions

Supporters see the full sub-surface read.

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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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Evidence
Records-basedModerate confidence

Based on species-occurrence records, not local invertebrate surveys.

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
2
1
Brown DunHatch
2
3
3
3
3
3
3
2
Western Green DrakeHatch
2
2
Flav (Small Western Green Drake)Hatch
2
3
2
Mahogany DunHatch
2
2

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

Ranked for today
Fly box · Cutthroat Trout
SD
Sex Dungeon
2-6 · Pattern
Proven pattern for this period
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 · 2
St. Mary River
32 km
Cutthroat trout · Bull trout · Rainbow trout
Bull River
46 km
Cutthroat trout · Bull trout
Gallery · 2
  1. Kootenay River along Hwy 93 between Radium Hot Springs and Vermilion
  2. Terrain map of the venue
    Terrain map
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 Cutthroat Trout · confidence 90%
How the 83 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity85 × 18%15.3
Feeding Time65 × 13%8.5
Pressure75 × 7%5.3
Insect activity69 × 12%8.3
Conditions total= 83
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