Tailwater · Limestone · Ontario, CA

Grand River (tailwater, below Shand Dam)

Belwood Lake Conservation Area- Grand River-View from Shand Dam-Ontario-20180804

The Grand below Shand Dam is one of Canada's finest brown-trout tailwaters — cool, rich, limestone bottom-release water through Fergus and Elora that grows good browns and serves up prolific hatches.

Prime · Brown Trout
Glo Bug · 8–14
Primelive now
About as good as it gets
Low and clear — careful approach country. Take your time — read the water before you cast.
90% confidence
What moved it
  • LevelDry recentlyNo gauge reading
  • Water temp11.2°C
  • ClarityClear
Today's fly
Glo Bug
Glo Bug8–14
High-confidence seasonal pick
Conditions on the water
Estimate
Level
Dry recently
No gauge reading
Water temp11.2°C
ClarityClear
Weather12°C
WindSE 11 km/h
Pressure1029 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 Brown Trout
Ideal
11°C est.ideal 10–16°C
0°14°28°

A dam sets this river's temperature, not the weather, so it can shift several degrees within hours when the release changes. It also warms as it runs away from the dam.

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 — conditions well-balanced, with water temperature particularly in your favour.
Likely species
Mayflies
Chironomids
Damselflies & dragonflies
Gammarids
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 6 active hatches hour by hour as a supporter.

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Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 4 guilds as a supporter.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 3 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 · October 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
SulphurHatch
2
3
2
Trico (Eastern)Hatch
2
3
3
2
Eastern Blue-Winged OliveHatch
2
3
3
3
3
3
3
3
2
Eastern Summer BWO (Drunella)Hatch
2
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.
  • Fly/artificial special-regulation reach; FMZ 16 seasons elsewhere
  • Verify current OFRS.
What's coming
Plan ahead
5-day outlook
Other water nearby · 1
Credit River
59 km
77
Steelhead · Brown trout · Chinook salmon
Gallery · 2
  1. Belwood Lake Conservation Area- Grand River-View from Shand Dam-Ontario-20180804
  2. Terrain map of the venue
    Terrain map
About this water

The Grand below Shand Dam is one of Canada's finest brown-trout tailwaters — cool, rich, limestone bottom-release water through Fergus and Elora that grows good browns and serves up prolific hatches. There's a fly/artificial special-regulation reach, genuine year-round trout fishing, and lovely dry-fly water in a pretty valley. A tailwater gem hiding in southern Ontario.

Under the surface

Below Shand Dam at Belwood, the Grand is one of eastern Canada's best brown-trout tailwaters — cool, limestone-rich bottom-release water through the Fergus–Elora corridor that grows wild and stocked brown trout with prolific hatches. Tailwater stability and rich water make for a genuine year-round trout fishery, with a special regulation (fly/artificial) reach and good dry-fly fishing in a pretty Ontario river valley.

Wading: Release driven flow changes, slick limestone, warm summer water below the cool reach

  • Limestone
  • Partly confined
  • Pool riffle
  • Tailwater
Conservation note

Wild and stocked brown trout in a cool tailwater; a fly/artificial special-regulation reach. Lower river holds lake-run steelhead and salmon from Lake Erie via the Grand. Mind summer water temperatures below the cool reach. Clean-Drain-Dry.

The full read · show the working · for Brown Trout · confidence 90%
How the 85 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time65 × 13%8.5
Pressure80 × 7%5.6
Insect activity70 × 12%8.4
Conditions total= 85
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 1 January → 31 December
Related guides
Euro Nymphingsubsurface methods
Casting instructors near here
Booking & contacts