Old Lake CottageBrown Trout fishing near Ajax, ON
907 documented waters within 300 km, 12 of them with brown trout as the primary species.
Where they are biting today
- Windo'er Lake (Elora)76
- Pefferlaw River76
- Waba Creek75
- Rocklyn Creek75
- Bell Creek75
- Bell Creek75
- Rocky Saugeen River75
- Little Lake (Honey Harbour)75
- Saugeen River75
- North Saugeen River75
Fishing brown trout around Ajax
The waters around Ajax give brown trout anglers real options: 907 documented waters in range are on record for brown trout in our Ontario catalogue, and their daily scores - built from weather, water temperature at depth and species-fit modelling - decide the order shown above rather than reputation or hearsay.
Windo'er Lake (Elora) leads today's ranking at a score of 76 (about 120 km from Ajax, roughly 8 m of water at its deepest). Pefferlaw River follows at 76 (about 52 km from Ajax). Waba Creek, scoring 75, rounds out the current leaders. Each number compresses the day's weather, modelled water temperature at depth and how well those conditions suit brown trout into one comparable score.
Brown trout are widely considered the wariest and most selective of the commonly-targeted trout species, especially once they reach a larger size - a real reputation earned through genuinely more cautious, structure-oriented behavior than rainbow or brook trout, not just angler folklore. Great Lakes browns, most common in Lake Ontario and Georgian Bay, occupy shallower water than rainbow trout or chinook and hug warming nearshore sand and rock in spring; inland fish hold in stream-fed pools in southern Ontario. Spring anglers flat-line or planer-board small stickbaits and spoons over shallow nearshore water, or cast from piers and break-walls; fall tributary fish take small spinners, plugs or small baits drifted beneath floats. The nearshore bite peaks in spring as warming water pulls baitfish and browns into the shallows; by early summer fish shift deeper along the thermocline, and fall draws spawners into the tributaries.
Everything above is recomputed daily - the numbers on this page reflect September 14, 2026 - so check back before committing to a water: the leaders genuinely change as weather systems move through.