Freestone · Limestone · Ontario, CA

Beaver River

Beaver River
Today · A proper day on the water
Pheasant Tail Nymph
Forecast · Today
A proper day on the water
A proper day for it. Work the seams with an upstream nymph, switch to the dry when they show.
75% projected
Today's fly
Pheasant Tail Nymph
Pheasant Tail Nymph
Conditions on the water · Today
Live gauge
Level
Steady
9.41 m
Water temp13.9°C
ClarityClear
Weather15°C
WindN 15 km/h
Pressure1022 hPa
Rain · recent0.0 mm
Rain · ahead0.3 mm

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

Water temperature for Steelhead
Warm — slow
14°C est.ideal 4–13°C
0°14°28°
How to fish it · for Steelhead
When
Spring (peak ~April) and fall steelhead; chinook in autumn.
Where
The Beaver at Thornbury is a famous, accessible Georgian Bay steelhead river — the dam and fishway draw crowds in spring as lake-run rainbows stack up.
Why this works
Good — water clarity is right today, though water temperature could be better.
Likely species
Mayflies
Caddisflies
Hatch timeline · todayPeak at 21h

12h(now) — Reed Smut

Stage: On emergersApproach: Emerger or dryActivity: 90%
Also:Eastern Blue-Winged Olive31%
Peak emergence windowWeather boost6 food groups active

Peak activity at 21h — Brown Dun (Brown Dun, Weather boost)

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

Top prey shown — see all 2 as a supporter.

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14-day free trial. Cancel anytime.

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
2
2
2
2
2
2
2
1
Brown DunHatch
2
3
3
3
3
3
3
2
Quill GordonHatch
2
2
Blue QuillHatch
2
3
2
HendricksonHatch
2
2

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

Ranked for today
Fly box · Steelhead
SS
Steelhead stonefly nymph
14–16 · Nymph
Search the runs and pockets, dead-drift near the bottom.
SI
Small Intruder
12–16 · Fly
A dependable searching pattern for these waters.
Permits & access
Permit required — see local rules.
  • Dam/fishway and sanctuary rules; FMZ 16 seasons
  • Verify current OFRS.
What's coming
Plan ahead
5-day outlook
Other water nearby · 3
Bighead River
12 km
Steelhead · Chinook salmon
Sydenham River (Owen Sound)
38 km
Steelhead · Chinook salmon
Nottawasaga River
40 km
Steelhead · Brown trout · Chinook salmon
Gallery · 2
  1. Beaver River
  2. Terrain map of the venue
    Terrain map
Conservation note

Naturalised lake-run steelhead and chinook (retention provincially regulated). The Thornbury fishway concentrates and protects spawners — observe sanctuary rules. Clean-Drain-Dry.

Why this score · for Steelhead
  • Temperature5328% weight
  • Flow6022% weight
  • Clarity9518% weight
  • Feeding Time7013% weight
  • Pressure757% weight
  • Insect activity5912% weight
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 1 January → 31 December
Related guides
Euro Nymphingsubsurface methods
Booking & contacts