Freestone · Volcanic · British Columbia, CA

Coldwater River

Coldwater River — ColdwaterriverBC
Today · About as good as it gets
Pheasant Tail
Forecast · Today
About as good as it gets
On the feed top to bottom — start on the rises with a dry, drop a nymph if they stay down.
90% projected
Today's fly
Pheasant Tail
Pheasant Tail
Conditions on the water · Today
Proxy gauge
Level
Steady
Proxy
via Similkameen River
Water temp12.1°C
ClarityClear
Weather12°C
WindN 5 km/h
Pressure1015 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

No gauge on this water — conditions are inferred from Similkameen River. The trend transfers, the absolute level does not.

Water temperature for Rainbow Trout
Ideal
12°C est.ideal 10–18°C
0°14°28°
How to fish it · for Rainbow 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.
Likely species
Mayflies
Caddisflies
Hatch timeline · todayPeak at 12 Uhr

12 Uhr(now) — Mahogany Dun

Stage: On emergersApproach: Emerger or dryActivity: 95%
Also:Reed Smut52%
Peak emergence window7 food groups active

Peak activity at 12 Uhr — Mahogany Dun (Mahogany Dun, Peak emergence window)

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 2 guilds as a supporter.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Supporters see what else is on the menu.

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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 · Rainbow Trout
SD
Sex Dungeon
2-6 · Pattern
Proven pattern for this period
Permits & access
Permit required — see local rules.
  • Gear/harvest rules; summer warm-water caution
  • Verify current BC regs (Region 3).
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Corbett Lake
18 km
Rainbow trout
Lundbom Lake
19 km
Rainbow trout
Peterhope Lake
50 km
Rainbow trout
Stump Lake
55 km
Rainbow trout
Pennask Lake
55 km
Rainbow trout
Gallery · 2
  1. Coldwater River — ColdwaterriverBC
    ColdwaterriverBC
  2. Terrain map of the venue
    Terrain map
Conservation note

Wild rainbow trout. Small interior stream — fish the cool of the day in high summer. Clean-Drain-Dry.

The full read · show the working · for Rainbow Trout · confidence 75%
How the 79 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity85 × 18%15.3
Feeding Time40 × 13%5.2
Pressure75 × 7%5.3
Insect activity60 × 12%7.2
Conditions total= 79
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via Similkameen Riverproxy
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 1 June → 31 October
Related guides
Euro Nymphingsubsurface methods
Booking & contacts