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  1. Home
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  4. /Beaver River

Ontario

Beaver River

Ontario·Georgian Bay and Lake Huron·44.50° N, 80.48° W
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Solunar · next 7 days

About Beaver River

The Beaver River runs north down the Beaver Valley, over Eugenia Falls and past Kimberley, and meets Georgian Bay at Thornbury. The Thornbury Dam sits just above the harbour. Steelhead and chinook gather in the short run below it, and a fish ladder at the dam lets them up the valley to spawn.

The water below the dam is small and close to town, a few hundred metres from the dam to the bay. It fishes in the fall and again in spring, and it is busy when the fish are in. From the fourth Saturday in April to December 31 you can fish it for rainbow trout, brown trout and Pacific salmon. Above the dam the river in the valley is a smaller freestone stream, and it follows the Bruce and Grey inland season, from the fourth Saturday in April to September 30. Read the Clarksburg gauge for the lower river and the Vandeleur gauge for the upper valley. A float and roe bag or a small egg fly works below the dam.

Mill Creek, a tributary below Mitchell's Falls, is closed from the fourth Saturday in April to May 31. Thornbury and the Blue Mountains resort area have plenty of places to stay, and Collingwood has full services.

Species

  • Steelhead
    Primary · Oct-Dec and Apr-May · 55-75 cm

    Georgian Bay rainbow trout that gather below the Thornbury Dam in the fall and spring, and pass the fish ladder to spawn up the valley. Keep the fish in the water when you release one.

  • Chinook Salmon (fall run)
    Common · Sep-Oct · 70-100 cm

    The fall run gathers below the Thornbury Dam.

  • Brown Trout
    Present · Apr-Dec · 30-55 cm

    Lake-run browns below the dam in the fall, and river browns up the valley.

SpeciesAbundanceBest SeasonSize
SteelheadPrimaryOct-Dec and Apr-May55-75 cm
Chinook Salmon (fall run)CommonSep-Oct70-100 cm
Brown TroutPresentApr-Dec30-55 cm

Sections

2 reaches

Thornbury Dam to Georgian Bay

WadeSteelhead · Salmon

A few hundred metres of river from the Thornbury Dam to the harbour, in the middle of town. Fish gather below the dam before they climb the ladder. Open from the fourth Saturday in April to December 31.

Best for: Chinook in September and October, and steelhead in the fall and after the late-April opener. Busy when the fish are in.

Vandeleur to Thornbury

WadeSteelhead · Salmon · Brown Trout · Rainbow Trout

The Beaver Valley water from below Eugenia Falls past Kimberley and Clarksburg to the pond above the Thornbury Dam. A smaller freestone stream through farm and forest, with much private land. The Thornbury fish ladder lets steelhead and salmon reach spawning water here. Open from the fourth Saturday in April to September 30.

Best for: Spring steelhead and brown trout after the late-April opener, and river trout into the summer.

At a glance

Ideal wading flow
6.2–15 m³/s
Blow-out
>23 m³/s
Ideal water temp
3–13°C
Best seasons

September and October for chinook below the Thornbury Dam, October to December 31 for fall steelhead, and the late-April opener into May for spring steelhead. The valley water above the dam is open from late April to September 30. Fish the drop after a rain.

Regulations

Thornbury Dam to Georgian Bay: rainbow trout, brown trout and Pacific salmon open from the fourth Saturday in April to December 31. Above the dam, the Bruce and Grey inland season, the fourth Saturday in April to September 30.

  • Beaver River in Collingwood Township, from the Thornbury Dam to Georgian Bay: rainbow trout, brown trout and Pacific salmon open from the fourth Saturday in April to December 31 (extended fall season).
  • Bruce and Grey county inland rivers and streams not listed for an extended season: trout and salmon open from the fourth Saturday in April to September 30.
  • Mill Creek and tributaries in Euphrasia and Collingwood townships, from Mitchell's Falls down to the Euphrasia and Collingwood townline: no fishing from the fourth Saturday in April to May 31.
  • Zone 16 limits: rainbow trout S-2 and C-1, brown trout and Pacific salmon S-5 and C-2, and no more than S-5 and C-2 trout and salmon of all kinds together.
  • You need an Outdoors Card and an Ontario fishing licence. In the limits, S is the daily catch and possession limit on a sport licence and C the limit on a conservation licence.

A different Beaver River runs into Lake Simcoe at Beaverton, with rules of its own. Check the regulations summary and the ministry's Beaver River map for Thornbury before you go.

Source: Ontario Fishing Regulations Summary, Fisheries Management Zone 16 (updated August 4, 2026). Regulations change annually. Verify before fishing.

Getting there

Thornbury, ON

About 2 hrs from Toronto, 20 min from Collingwood, 40 min from Owen Sound

Camping: Inns, motels and rentals in Thornbury and the Blue Mountains, and full services in Collingwood.

The water below the dam is in the middle of Thornbury, a short walk from the harbour. Respect private land along the valley.

Fishing reports

Recent reports from local fly shops, guides & lodges on Beaver River. Each links out to the source.

No recent fishing reports for Beaver River

We aggregate reports from local fly shops, guides, and lodges as they publish. Check back, or browse the shops on the Guide tab.

Read the fishing reports for the Beaver River

Reports from the fly shops and guides who fish it, with a link to each. Free, with an email.

A free account also gets you

  • 5-day Fish Index forecastSee how each of the next 5 days rates on every river and lake, from the flow or wind, water temperature, weather and moon forecasts.
  • A dashboard for your watersSave your rivers and lakes and compare them on one board, with the last week and the days ahead.
  • A logbook that fills in the conditionsLog outings and trips with photos, even with no signal in the app. Troutline adds the flow, water temperature and weather for each day.
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Good
Fishing
Fair
Flow
3.9m³/s
Steady · low for Novlow for November
Beaver River near Clarksburg
Water temp
—
Flow
3.9m³/s
Steady · low for Novlow for November
Beaver River near Clarksburg
Water temp
—
Normal range
4.7–11m³/s
Median 7.3 m³/s
Weather
6°C
Clear

Fishing conditions

Fair
PoorSlowFairGoodPrime
How we rate this
Wed
11/11
—
MDE
Thu
11/12
—
MDE
Fri
11/13
—
MDE
Sat
11/14
—
MDE
Sun
11/15
—
MDE

MmorningDmiddayEevening

poorprime

Today
morning6:12a – 10:09aFair
midday10:09a – 2:05pFairRising pressure
evening2:05p – 6:01pFairRising pressure
All day
New moonBright sun
Measured
3.9 m³/s, low

See the 5-day fishing forecast for the Beaver River

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A free account also gets you

  • Full conditions on every river and lakeFlow and temperature charts for every station, the weather, sun and moon, and fishing reports from local shops.
  • A dashboard for your watersSave your rivers and lakes and compare them on one board, with the last week and the days ahead.
  • A logbook that fills in the conditionsLog outings and trips with photos, even with no signal in the app. Troutline adds the flow, water temperature and weather for each day.
  • Your angler profileSee other anglers' public outings, and share yours.

Already have an account?

Want history, unlimited alerts and more? , with the first 14 days free for new members.