Tailwater · Gravel · Alberta

Bow River — Calgary (Bearspaw to Policeman's Flats)

Bow River — Calgary (Bearspaw to Policeman's Flats) — #5664 Bow River Canada

The Bow is a world-class wild-trout river running straight through Calgary, cold and nutrient-rich below Bearspaw Dam and stuffed with big, wild brown and rainbow trout that have never seen a stocking truck.

Prime · Brown Trout
Sparkle Dun · 14-18
Primelive now
About as good as it gets
River high but settled. Coloured water — fish bigger and deeper, confident takes down the seams.
90% confidence
What moved it
  • Level1.54 mLast reading 15h ago
  • Water temp10.3°C
  • ClarityClear
Today's fly
SD
Sparkle Dun14-18
High-confidence seasonal pick
Conditions on the water
Live gauge
Level
Steady
1.54 m
Last reading 15h ago
Water temp10.3°C
ClarityClear
Weather25°C
WindW 17 km/h
Pressure1010 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

Live readings — water temperature is an estimate where the gauge does not record it.

Water temperature for Brown Trout
Ideal
10°C est.ideal 1016°C
0°14°28°
How to fish it · for Brown 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 — water temperature is right today, though insect activity could be better.
Hatch timeline · todayQuiet day

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 3 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
2
2
2
2
2
2
2
1
Western Blue-Winged OliveHatch
2
3
3
3
3
3
3
3
2
Pale Morning DunHatch
2
3
3
2
TricoHatch
2
3
2
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2

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

Ranked for today
Brown Trout fly box
Permits & access
Permit required — see local rules.
  • Reach-specific gear/harvest rules — largely C&R and bait-restricted
  • Verify current Alberta regs (Zone ES1).
What's coming
Plan ahead
5-day outlook
Other water nearby · 4
Gallery · 2
  1. Bow River — Calgary (Bearspaw to Policeman's Flats) — #5664 Bow River Canada
    #5664 Bow River Canada
  2. Terrain map of the venue
    Terrain map
About this water

The Bow is a world-class wild-trout river running straight through Calgary, cold and nutrient-rich below Bearspaw Dam and stuffed with big, wild brown and rainbow trout that have never seen a stocking truck. It fishes all year and is mostly a float game: long riffles and seams, prolific hatches, and fish that pull hard. Summer brings strong hatches and hopper fishing; the shoulder seasons reward streamers and nymphs through the deeper runs. Release these fish — they're the whole reason the river is what it is.

Under the surface

The Bow through Calgary is one of the great trout rivers of the world hiding in plain sight in a city of a million-plus people. Below Bearspaw Dam it runs cold, clear and astonishingly rich — treated municipal nutrient input and dam-buffered flows grow wild brown and rainbow trout to remarkable size and density, with no stocking. It's a big, powerful, even-flowing river of long riffles, drop-offs and bankside seams, fished mostly from a drift boat through the city and the prairie-edge reaches downstream. Prolific hatches and big, hard-fighting wild fish make it a destination in its own right.

Wading: Big volume, strong current, drop offs — much of it is float water

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

Wild, self-sustaining brown and rainbow trout (no stocking) — the value is releasing these fish. Bull trout (a char, zero limit province-wide) and mountain whitefish are present and are not harvest targets. Whirling disease is present in the Bow basin — Clean-Drain-Dry gear.

The full read · show the working · for Brown Trout · confidence 90%
How the 86 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time80 × 13%10.4
Pressure80 × 7%5.6
Insect activity64 × 12%7.7
Conditions total= 86
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
Directions
Seasons & zones
  • Trout 1 January31 December
Related guides
Booking & contacts