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Credit River · Upper Credit River

Credit River brook trout, today

Brook trout hold in the coldest headwater reaches of the Upper Credit, particularly above Old Baseline Road in Caledon. These are wild fish — smaller than the browns below but extraordinarily beautiful. Water temperature is the whole game: brookies go off the feed above 18°C, so midsummer is unproductive. Best fishing is May–June and again in September.

The river right now
Flow
0.9 m³/s
Low
Water temp
~13.1°
Ideal
Sky
61%
Good cover
Conditions: Good · aim for 3–10 m³/s

How to fish it

Use light tackle — a 3 or 4 weight, 5x or 6x tippet, flies in the 14–18 range. Brook trout in clear headwater streams spook easily. Wade carefully, stay low, and cast to specific fish rather than covering water at random.

Before you go

Catch-and-release only for Brook Trout on this stretch, artificial lures only, one single-pointed barbless hook. Season closes September 30. Confirm the current rules in the Ontario fishing regulations for Zone 16 before you fish.

Access points

Read next

For the river as a whole — the three sections, the two dams, and why which stretch you pick matters more here than anywhere — see fishing the Credit River. Timing for every Ontario river is in the river-by-river salmon run guide, and for the drift itself, three float fishing tips.

Other species on the Credit

Sources. Flow: Water Survey of Canada, Credit River near Cataract (02HB001) · Weather: Open-Meteo · Ontario Fishing Regulations Summary 2026, Zone 16. Conditions refresh every 30 minutes. Regulations change and vary by reach — always confirm the rules for the exact stretch you plan to fish.